CA2602695A1 - Wireless device with reader for machine readable indicia and method of effecting communication with a remote server - Google Patents

Wireless device with reader for machine readable indicia and method of effecting communication with a remote server Download PDF

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Publication number
CA2602695A1
CA2602695A1 CA 2602695 CA2602695A CA2602695A1 CA 2602695 A1 CA2602695 A1 CA 2602695A1 CA 2602695 CA2602695 CA 2602695 CA 2602695 A CA2602695 A CA 2602695A CA 2602695 A1 CA2602695 A1 CA 2602695A1
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Canada
Prior art keywords
printhead
print
print medium
mobile device
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2602695
Other languages
French (fr)
Other versions
CA2602695C (en
Inventor
Kia Silverbrook
Paul Lapstun
Simon Robert Walmsley
Tobin Allen King
David John Atkinson
Gregory Michael Tow
Michael J. Hollins
Peter Charles Boyd Henderson
Richard Thomas Plunkett
Jacqueline Anne Lapstun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silverbrook Research Pty Ltd
Original Assignee
Silverbrook Research Pty Ltd
Kia Silverbrook
Paul Lapstun
Simon Robert Walmsley
Tobin Allen King
David John Atkinson
Gregory Michael Tow
Michael J. Hollins
Peter Charles Boyd Henderson
Richard Thomas Plunkett
Jacqueline Anne Lapstun
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Filing date
Publication date
Application filed by Silverbrook Research Pty Ltd, Kia Silverbrook, Paul Lapstun, Simon Robert Walmsley, Tobin Allen King, David John Atkinson, Gregory Michael Tow, Michael J. Hollins, Peter Charles Boyd Henderson, Richard Thomas Plunkett, Jacqueline Anne Lapstun filed Critical Silverbrook Research Pty Ltd
Priority to PCT/AU2005/000662 priority Critical patent/WO2006119533A1/en
Publication of CA2602695A1 publication Critical patent/CA2602695A1/en
Application granted granted Critical
Publication of CA2602695C publication Critical patent/CA2602695C/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/26Devices for signalling identity of wanted subscriber
    • H04M1/27Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, i.e. memories whose operation does not require relative movement between storage means and a transducer, e.g. chips
    • H04M1/2755Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, i.e. memories whose operation does not require relative movement between storage means and a transducer, e.g. chips whose contents are provided by optical scanning
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/20Image acquisition
    • G06K9/22Image acquisition using hand-held instruments
    • G06K9/24Construction of the instrument
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/02Constructional features of telephone sets
    • H04M1/21Combinations with auxiliary equipment, e.g. with clock, with memoranda pads
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00204Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00281Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
    • H04N1/00307Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a mobile telephone apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00352Input means
    • H04N1/00355Mark-sheet input
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00352Input means
    • H04N1/00355Mark-sheet input
    • H04N1/00358Type of the scanned marks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00352Input means
    • H04N1/00355Mark-sheet input
    • H04N1/00368Location of the scanned marks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00352Input means
    • H04N1/00355Mark-sheet input
    • H04N1/00368Location of the scanned marks
    • H04N1/00374Location of the scanned marks on the same page as at least a part of the image
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00352Input means
    • H04N1/00384Key input means, e.g. buttons or keypads
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00405Output means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035User-machine interface; Control console
    • H04N1/00405Output means
    • H04N1/00485Output means providing a hardcopy output to the user, e.g. print out
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23Reproducing arrangements
    • H04N1/2307Circuits or arrangements for the control thereof, e.g. using a programmed control device, according to a measured quantity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23Reproducing arrangements
    • H04N1/2307Circuits or arrangements for the control thereof, e.g. using a programmed control device, according to a measured quantity
    • H04N1/2323Circuits or arrangements for the control thereof, e.g. using a programmed control device, according to a measured quantity according to characteristics of the reproducing medium, e.g. type, size or availability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms, e.g. ink-jet printers, thermal printers characterised by the purpose for which they are constructed
    • B41J3/44Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
    • B41J3/445Printers integrated in other types of apparatus, e.g. printers integrated in cameras
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/20Image acquisition
    • G06K9/22Image acquisition using hand-held instruments
    • G06K2009/226Image acquisition using hand-held instruments by sensing position defining codes on a support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/12Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077Types of the still picture apparatus
    • H04N2201/0081Image reader
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077Types of the still picture apparatus
    • H04N2201/0082Image hardcopy reproducer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0096Portable devices

Abstract

A method of accessing at least one electronic connection address using a mobile device and an interactive printed document that includes human-readable information and machine-readable coded data, the mobile telecommunications device comprising: a transceiver configured to send and receive signals via a wireless telecommunications network; sensing means; and decoding means; the method comprising the steps of: (a) sensing, with the sensing means, at least some of the coded data while the mobile telecommunications device is used to physically interact with the printed document; (b) sending, with the transceiver, the indicating data to a remote computer system; (c) receiving, with the transceiver, at least one electronic connection address in response to the indicating data; and (d) outputting the at least one connection address in a human readable manner.

Claims (1048)

1. A method of accessing at least one electronic connection address using a mobile device and an interactive printed document that includes human-readable information and machine-readable coded data, the mobile telecommunications device comprising:
a transceiver configured to send and receive signals via a wireless telecommunications network;
sensing means; and decoding means;
the method comprising the steps of:
(a) sensing, with the sensing means, at least some of the coded data while the mobile telecommunications device is used to physically interact with the printed document;
(b) sending, with the transceiver, the indicating data to a remote computer system;
(c) receiving, with the transceiver, at least one electronic connection address in response to the indicating data;
and (d) outputting the at least one connection address in a human readable manner.
2. A method according to claim 1, the mobile device including an integral printer, wherein step (d) includes printing the at least one connection address onto a print medium with the printer.
3. A method according to claim 2, the mobile device including a display, wherein step (d) includes displaying the at least one connection address on the display.
4. A method according to claim 3, the mobile device further including a user interface, the method including the steps, performed after step (d), of:
(e) receiving, via the user interface, user selection of at least one of the at least one connection address displayed on the display;
(f) establishing a connection with the selected at least one connection address, via the transceiver and the mobile telecommunications network.
5. A method according to claim 4, wherein the selected at least one connection address is a telephonic number, and step (f) includes establishing a telephonic connection between the mobile device and the at least one connection address.
6. A method according to claim 5, wherein the telephonic connection is a voice connection.
7. A method according to claim 5, wherein the telephonic connection is an audio-visual connection.
8. A method according to claim 3, the mobile device further including a user interface, the method including the steps, performed after step (d), of:
(e) receiving, via the user interface, user selection of at least one of the at least one connection address displayed on the display;

(d) sending information, or causing information to be sent, to the at least one connection address via the establishing a connection with the selected at least one connection address, via the transceiver and the mobile device.
9. A method according to claim 1, wherein the coded data is indicative of an identity of the print medium.
10. A method according to claim 9, wherein the coded data is indicative of at least one location in relation to the print medium.
11. A method according to claim 1, wherein the coded data is indicative of an object.
12. A method according to claim 11, wherein the coded data is indicative of an electronic address of the object.
13. A method according to claim 1, wherein the electronic connection address comprises one or more of the following:
an email address;
a fax number;
a phone number;
a network address; and a URL.
14. A method according to claim 1, wherein the mobile device includes a printer, the method including printing the connection address onto a print medium.
15. A method according to claim 14, further including steps of:
determining a relationship between the connection address printed or to be printed onto the print medium; and transmitting the data indicative of the relationship to a remote computer system for storage.
16. A method according to claim 14, wherein the print medium is a card.
17. A method according to claim 14, wherein the mobile device stores one or more templates for use in generating an image to be printed, the image incorporating the connection address in human readable form.
18. A method according to claim 14, wherein the mobile device is configured to access a remote computer system to download one or more templates for use in generating an image to be printed, the image incorporating the connection address in human readable form.
19. A method of enabling interaction with a printed schedule document using a mobile device including sensing means, processing means and a transceiver, the schedule document including human-readable first schedule information and machine-readable coded data, the method including the steps of:

(a) sensing at least some of the coded data with the sensing means while the mobile telecommunications device is used by a user to physically interact with the schedule document;
(b) decoding, with the processing means, at least some of the sensed coded data and generating indicating data on the basis of the decoded coded data;
(c) transmitting, using the transceiver, the indicating data to a remote computer system via the wireless telecommunications network;
(d) receiving, using the transceiver, response data from the computer system, the response data having been sent in reply to the indicating data;
(e) generating, using the processing means, a layout based on the response data, the response data representing further schedule information; and (f) outputting the layout in a human-readable form.
20. A method according to claim 19, the mobile device further including a display, the method including outputting the layout by displaying it on the display.
21. A method according to claim 19, the mobile device further including a printer, the method including outputting the layout by printing it using the printer.
22. A method according to claim 21, the mobile device further including a printer controller, the method including processing the layout with the printer controller to generate dot data, and supplying the dot data to the printer to be printed.
23. A method according to claim 20, the mobile device further including a printer, the method including outputting the layout by printing it using the printer.
24. A method according to claim 23, the mobile device further including a printer controller, the method including processing the layout with the printer controller to generate dot data, and supplying the dot data to the printer to be printed.
25. A mobile device according to claim 24, wherein the print medium includes a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing of the dot data;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
26. A mobile device according to claim 25, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
27. A mobile device according to claim 26, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
28. A mobile device according to claim 25, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
29. A mobile device according to claim 25, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
30. A mobile device according to claim 29, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
31. A mobile device according to claim 25, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
32. A mobile device according to claim 31, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
33. A mobile device according to claim 32, configured to receive the information indicative of the predetermined registration from a remote computer system via the transceiver.
34. A mobile device according to claim 31, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to determine a registration between what is being printed and the second coded data.
35. A mobile device according to claim 34, configured to transmit the determined registration to a remote computer system via the transceiver.
36. A mobile telecommunications device including:
a transceiver for sending and receiving signals via a wireless telecommunications network;
a processor for processing schedule data to generate dot data representing a visual layout of the schedule data; and a printer configured to receive the dot data and print it onto a print medium.
37. A mobile telecommunications device according to claim 36, wherein the printer is configured to print coded data onto the print medium along with the visual layout represented by the dot data.
38. A mobile telecommunications device according to claim 36, configured to receive, using the transceiver, the schedule data from a remote computer system via the telecommunications network.
39. A mobile telecommunications device according to claim 38, configured to send, using the transceiver, a request to the remote computer system, the request identifying the schedule data, the schedule data being received in response to the request.
40. A mobile telecommunications device according to claim 40, wherein the coded data is indicative of an identity of a document containing the schedule data.
41. A mobile device according to claim 40, wherein print medium includes a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing of the dot data;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
42. A mobile device according to claim 41, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
43. A mobile device according to claim 42, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
44. A mobile device according to claim 41, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
45. A mobile device according to claim 41, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
46. A mobile device according to claim 45, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
47. A mobile device according to claim 41, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
48. A mobile device according to claim 47, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
49. A mobile device according to claim 48, configured to receive the information indicative of the predetermined registration from a remote computer system via the transceiver.
50. A mobile device according to claim 47, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to determine a registration between what is being printed and the second coded data.
51. A mobile device according to claim 50, configured to transmit the determined registration to a remote computer system via the transceiver.
52. A mobile device for enabling interaction with a printed email document, the email document including human-readable first email information and machine-readable coded data, the mobile device including:
a transceiver for sending and receiving signals via a wireless telecommunications network;
sensing means for sensing at least some of the coded data while the mobile device is used to interact with the email document;
processing means for decoding at least some of the sensed coded data and generating indicating data on the basis of the decoded coded data;
the mobile device being programmed and configured to:
(a) transmit, using the transceiver, the indicating data to a remote computer system via the wireless telecommunications network;
(b) receive, using the transceiver, response data from the computer system;
(c) generating, using the processing means, a layout based on the response data, the response data representing further email information; and (d) outputting the layout in a human-readable form.
53. A mobile device according to claim 52, further including a display, the mobile device being configured to output the layout by displaying it on the display.
54. A mobile device according to claim 52, further including an integral printer, the mobile device being configured to output the layout by printing it using the printer.
55. A mobile device according to claim 54, further including a printer controller circuit configured to process the layout to generate dot data and supply the dot data to the printer to be printed.
56. A mobile device according to claim 53, further including an integral printer, the mobile device being configured to output the layout by printing it onto a print medium using the printer.
57. A mobile device according to claim 56, further including a printer controller circuit configured to process the layout to generate dot data and supply the dot data to the printer to be printed.
58. A mobile device according to claim 57, wherein the print medium includes a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing of the dot data;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
59. A mobile device according to claim 58, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
60. A mobile device according to claim 59, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
61. A mobile device according to claim 58, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
62. A mobile device according to claim 58, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
63. A mobile device according to claim 62, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
64. A mobile device according to claim 58, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
65. A mobile device according to claim 64, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
66. A mobile device according to claim 65, configured to receive the information indicative of the predetermined registration from a remote computer system via the transceiver.
67. A mobile device according to claim 64, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to determine a registration between what is being printed and the second coded data.
68. A mobile device according to claim 67, configured to transmit the determined registration to a remote computer system via the transceiver.
69. A cartridge for use in a mobile device including:
(a) an inkjet printhead;
(b) a print media feed path for directing print media past the printhead in a feed direction during printing; and (c) a drive mechanism for driving the print media past the inkjet printhead for printing.
70. A cartridge according to claim 69, wherein the drive mechanism is a passive mechanism with a drive shaft for engaging the print media and driving it past the inkjet printhead.
71. A cartridge according to claim 70, further comprising a drive roller for rotating the drive shaft, the drive roller being configured to be driven by a complementary drive mechanism in the mobile device when the cartridge is installed therein.
72. A cartridge according to claim 71, wherein the drive roller is coaxial with the drive shaft.
73. A cartridge according to claim 72, wherein the drive shaft is positioned in the print media path upstream of the printhead.
74. A cartridge according to claim 69 further comprising a printhead having an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
75. A print cartridge according to claim 69 further comprising:

(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead;
(b) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media reaching the capper.
76. A print cartridge according to claim 69 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and (b) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
77. A print cartridge according to claim 69 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media; wherein, (b) the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
78. A print cartridge according to claim 69 further comprising:
the media substrate is a sheet; wherein during use, the sheet disengages from the drive mechanism before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
79. A print cartridge according to claim 69 wherein the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from a beacon operated by a print engine controller in the mobile device.
80. A print cartridge according to claim 69 wherein the mobile device comprises:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
81. A print cartridge according to claim 70 wherein the mobile device comprises:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
82. A print cartridge according to claim 69 further comprising at least one ink reservoir for supplying ink to the printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
83. A print cartridge according to claim 69 wherein the media substrate is a sheet with coded data on at least part of its surface; and the mobile device further comprises a print engine controller for operatively controlling the printhead; and, a sensor for reading the coded data and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
84. A print cartridge according to claim 69 wherein the media substrate has coded data on at least part of its surface; and, the mobile device further comprising a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading the coded data before, as well as after, it has past the printhead.
85. A print cartridge according to claim 69 wherein the mobile device is a telecommunication device.
86. A print cartridge according to claim 69 wherein the mobile device is a mobile phone.
87. A print medium for use in a mobile device having a printer, the print medium comprising:
a laminar substrate defining first and second opposite faces;
first coded data in a first data format disposed in a first data region on the laminar substrate, the first coded data encoding first information; and at least one orientation indicator indicative of an orientation of the print medium.
88. A print medium according to claim 87, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
89. A print medium according to claim 88, the print medium having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through a media feed path, at least one of the at least one orientation indicators being disposed on or in the print medium at or adjacent the leading edge.
90. A print medium according to claim 89, wherein one of the orientation indicators is positioned adjacent a first corner of the print medium on the first face.
91. A print medium according to claim 90, wherein another of the orientation indicators is positioned adjacent a second corner of the print medium on the first face, the second corner being diagonally opposite the first corner.
92. A print medium according to claim 90, wherein another of the orientation indicators is positioned adjacent a third corner of the print medium on the second face, the third corner being adjacent the second corner.
93. A print medium according to claim 92, wherein another of the orientation indicators is positioned adjacent a fourth corner of the print medium on the second face, the fourth corner being diagonally opposite the third corner.
94. A print medium according to claim 93, wherein another of the orientation indicators is positioned adjacent a second corner of the print medium on the first face, the second corner being diagonally opposite the first corner.
95. A print medium according to claim 90, further including a plurality of the orientation indicators, the position and number of the orientation indicators being positioned and configured such that, when the print medium is used in a suitably equipped mobile device, the device can determine the orientation of the card without having to read all of the orientation indicators.
96. A print medium according to claim 87, wherein the first coded data a linear-encoded data track extending in an intended direction of printing.
97. A print medium according to claim 96, wherein the data track is printed with infrared ink.
98. A print medium according to claim 96, wherein the data track includes a clock track containing only a clock code from which a clock signal can be derived during printing onto the print medium.
99. A print medium according to claim 96, wherein the first information includes an embedded clock from which a clock signal can be derived during printing onto the print medium.
100. A print medium according to claim 87, further including second coded data that encodes second information, the first information being indicative of the second information.
101. A print medium according to claim 87, wherein the first information is indicative of at least one physical characteristic of the print medium.
102. A print medium according to claim 101, wherein the first information is indicative of a size of the print medium.
103. A print medium according to claim 116, wherein the first information is indicative of a media type associate with the print medium.
104. A print medium according to claim 101, wherein the first information is indicative of information pre-printed onto the print medium.
105. A mobile device according to claim 87, further including pre-printed human-readable information printed on either or both of the first and second faces.
106. A mobile device according to claim 87, wherein the first coded data is printed in infrared ink that is substantially invisible to an average unaided human eye.
107. A print medium for use with a mobile device having a printer, the print medium comprising:
a substrate defining first and second opposite faces; and an orientation indicator disposed on at least one of the first and second faces, the orientation indicator being indicative of at least one orientation of the print medium, thereby enabling the mobile device to determine the print medium's orientation prior to printing thereon.
108. A print medium according to claim 107, wherein the orientation indicator is indicative of which of the first and second faces it is disposed upon.
109. A print medium according to claim 107, wherein the orientation indicator is indicative of an absolute planar rotational orientation of the print medium.
110. A print medium according to claim 107, having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through the media feed path, wherein the orientation indicator is positioned at or adjacent the leading edge and is indicative of the leading edge.
111. A print medium according to claim 107, further including a plurality of the orientation indicators.
112. A print medium according to claim 111, wherein:
(a) each of the orientation indicators is indicative of which of the first and second faces it is disposed upon;
(b) each of the orientation indicators is indicative of an absolute planar rotational orientation of the print medium; and/or (c) the print medium has a leading edge and a trailing edge defined relative to intended feed direction of the print medium through the media feed path, wherein the orientation indicator is positioned at or adjacent the leading edge and is indicative of the leading edge.
113. A print medium according to claim 107, wherein the orientation indicator is disposed at or adjacent an edge of the print medium.
114. A print medium according to claim 113, wherein the orientation indicator is positioned adjacent a first comer of the print medium on the first face.
115. A print medium according to claim 114, wherein another of the orientation indicators is positioned adjacent a second corner of the print medium on the first face, the second corner being diagonally opposite the first corner.
116. A print medium according to claim 115, wherein another of the orientation indicators is positioned adjacent a third corner of the print medium on the second face, the third corner being adjacent the second corner.
117. A print medium according to claim 116, wherein another of the orientation indicators is positioned adjacent a fourth corner of the print medium on the second face, the fourth corner being diagonally opposite the third corner.
118. A print medium according to claim 107, wherein the orientation indicator forms part of a coded data region on the print medium.
119. A print medium according to claim 118, wherein the coded data takes the form of a linear-encoded data track.
120. A print medium according to claim 119, wherein the data track extends along an edge of the print medium in an intended print direction of the card.
121. A print medium according to claim 121, wherein the data track encodes first information in addition to the orientation indicator.
122. A print medium according to claim 121, further including second information encoded in accordance with a coding different from the linear-encoding of the data track, the first information being indicative of the second information.
123. A print medium according to claim 107, wherein the coded data is printed in infrared ink.
124. A mobile device according to claim 123, wherein the first coded data is printed in infrared ink that is substantially invisible to an average unaided human eye.
125. A mobile device according to claim 107, further including pre-printed human-readable information printed on either or both of the first and second faces.
126. A method of using a mobile device to print onto a print medium, the mobile device comprising:
a wireless transceiver for sending and receiving data via a telecommunications network; and a printer;
the method comprising the steps of:
(a) determining a geographical location of the mobile device;
(b) determining a product or service available at, in or within a predetermined distance of, the geographical location;
(c) formatting a voucher containing information associated with the product or service; and (d) printing the voucher using the printer.
127. A method according to claim 126, wherein the information is indicative of a location of a commercial entity.
128. A method according to claim 126, wherein the information is indicative of an inducement to buy the product or service.
129. A method according to claim 128, wherein the inducement is a price discount.
130. A method according to claim 129, wherein the price discount is only valid at an outlet of a commercial entity at the location.
131. A method according to claim 129, wherein the price discount is valid at any of a number of outlets of the commercial entity.
132. A method according to claim 126, including the step of using the mobile device to determine the geographical location.
133. A method according to claim 128, wherein the mobile device includes a GPS
receiver, the method comprising determining the geographical location using the GPS receiver.
134. A method according to claim 126, wherein the sensing device includes a wireless receiver for receiving radio-frequency data from a transmitter, step of determining the geographical location including the step of receiving, via the transmitter, radio-frequency data the geographical location.
135. A method according to claim 127, including deriving the geographical location using an Uplink Time Difference of Arrival technique.
136. A method according to claim 126, wherein the providing step includes sending the information to an electronic address associated with at least one of the user of the mobile device.
137. A method according to claim 126, wherein the geographical location is an area.
138. A method according to claim 137, wherein the area is defined by a postal or zip code.
139. A method according to claim 137, wherein the area is a city, suburb or town.
140. A method according to claim 137, wherein the area is at least partially defined by a transmission footprint of one or more cells of a telecommunications network.
141. A method according to claim 140, wherein the area is at least partially defined by a transmission footprint of one or more cells of the telecommunications network.
142. A method according to claim 126, including the steps of:
using a sensor in the mobile device to sense a data track during printing of the voucher, the data track being disposed on a face of the print medium being printed on to generate the voucher;
generating a fire control signal from the sensed data track; and synchronizing the printing of the voucher using the fire control signal.
143. A mobile device according to claim 142, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
144. A mobile device according to claim 142, wherein the data track is a clock track containing only a clock code, the method including the step of generating a clock signal generated from the sensed data track, the fire control signal being based on the clock signal.
145. A mobile device according to claim 142, wherein the data track includes first information, the first information including an embedded clock signal, the method including the step of extracting a clock signal from the sensed data track, the fire control signal being based on the clock signal.
146. A mobile device including:
a printhead for printing onto a print medium, the print medium including coded data;
a media path for directing the print medium past the printhead for printing;
an optical sensor;
a first optical pathway for directing optical image information to the sensor to enable it to read at least some of the coded data from the print medium while at least some of the print medium is within the media path; and a second optical pathway for directing optical image information to the sensor to enable it to read coded data from the print medium when the print medium is not in the media path.
147. A mobile device according to claim 146, including at least one light source for illuminating the coded data to be sensed via the first optical pathway.
148. A mobile device according to claim 146, including at least one light source for illuminating the coded data to be sensed via the second optical pathway.
149. A mobile device according to claim 147, wherein the light source is an infrared light source.
150. A mobile device according to claim 148, wherein the light source is an infrared light source.
151. A mobile device according to claim 146, wherein the first optical pathway includes at least one mirror.
152. A mobile device according to claim 152, wherein the first optical pathway includes a periscope arrangement of mirrors.
153. A mobile device according to claim 146, further including a shutter selectively operable to reduce or prevent light from reaching the sensor via the second optical pathway during at least part of a printing procedure.
154. A mobile device according to claim 154, further including a shutter-closing mechanism configured to close the shutter in response to the print medium moving through at least part of the media path.
155. A mobile device according to claim 146, wherein the first and second optical pathways share a common optical pathway portion.
156. A mobile device according to claim 146, further including a printer.
157. A mobile device according to claim 156, wherein the printer takes the form of a replaceable cartridge.
158. A mobile device according to claim 157, wherein the replaceable cartridge includes at least one ink reservoir.
159. A mobile device according to claim 158, wherein the replaceable cartridge includes at least one sensor for sensing coded data on print medium intended to be used with the printer.
160. A mobile device according to claim 159, wherein the replaceable cartridge includes a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the media path.
161. A mobile device according to claim 146, wherein in the capped position the capper is resiliently urged into the capping relationship.
162. A mobile device according to claim 161, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
163. A mobile device according to claim 157, wherein the replaceable cartridge includes a media drive mechanism for engaging print media to be printed by the printer.
164. A mobile device according to claim 163, further including drive means for driving the media drive mechanism, the drive means not forming part of the replaceable cartridge.
165. A mobile device according to claim 164, wherein the media drive mechanism includes a driven wheel configured to engage the drive means when the replaceable cartridge is installed in the mobile device.
166. An integrated cartridge for installation into a mobile device, the cartridge including:
an inkjet printhead including a plurality of inkjet nozzles;
at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles; and a capping mechanism for capping the printhead when it is not in use.
167. An integrated cartridge according to claim 166, including a plurality of the ink reservoirs, each supplying ink to a subset of the nozzles.
168. An integrated cartridge according to claim 167, including reservoirs containing cyan, magenta and yellow inks, respectively.
169. An integrated cartridge according to claim 167, including reservoirs that respectively contain cyan, magenta, yellow inks and at least one other fluid.
170. An integrated cartridge according to claim 169, wherein the at least one other fluid includes black ink.
171. An integrated cartridge according to claim 169, wherein the at least one other fluid includes infrared ink.
172. An integrated cartridge according to claim 169, wherein the at least one other fluid includes infrared ink and black ink.
173. A cartridge according to claim 166, further comprising a drive shaft for engaging the print media and driving it past the inkjet printhead.
174. A cartridge according to claim 173, further comprising a drive roller for rotating the drive shaft, the drive roller being configured to be driven by a complementary drive mechanism in the mobile device when the cartridge is installed therein.
175. A cartridge according to claim 174, wherein the drive roller is coaxial with the drive shaft.
176. A cartridge according to claim 175, wherein the drive shaft is positioned in the print media path upstream of the printhead.
177. A cartridge according to claim 166 further comprising a printhead having an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles.
178. A print cartridge according to claim 166 wherein the capping mechanism has a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and the cartridge further comprises:
a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media reaching the capper.
179. A print cartridge according to claim 166 wherein the capping mechanism has a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and the cartridge further comprises:
a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
180. A print cartridge according to claim 166 wherein the capping mechanism has a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media; such that during use, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
181. A print cartridge according to claim 166 further comprising:
the media substrate is a sheet; wherein during use, the sheet disengages from the drive mechanism before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
182. A print cartridge according to claim 173 wherein the mobile device comprises:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
183. A print cartridge according to claim 166 further comprising at least one ink reservoir for supplying ink to the printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
184. A print cartridge according to claim 166 wherein the mobile device is a telecommunication device.
185. A print cartridge according to claim 166 wherein the mobile device is a mobile phone.
186. A mobile device including:
(a) an inkjet printhead;
(b) a print media feed path for directing a print medium past the printhead in a feed direction during printing;
(c) a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
(d) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the print medium as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the print medium reaching the capper.
187. A mobile device according to claim 186, wherein the capper is moved completely into the uncapped position by the force transfer mechanism.
188. A mobile device according to claim 186, wherein the force transfer device includes at least one crank member mounted to pivot about an axis, the crank member including:
a first region for engaging the print medium; and a second region, rotationally displaced from the first region, for engaging the capping mechanism;
the crank member being configured to translate linear force provided by the print medium into a torque that causes movement of the capper from the capped position towards the uncapped position.
189. A mobile device according to claim 186, further including a locking mechanism for holding the capper in the uncapped position whilst the print medium is being printed on by the printhead.
190. A mobile device according to claim 189, wherein the locking mechanism includes at least one cam mounted for rotation between an unlocked position and a locked position, the at least one cam being configured such that, in the unlocked position, it extends at least partially into the feed path when the print medium is not present, the at least one cam being positioned and configured to engage an edge of the print medium as the print medium is fed through the feed path such that the at least one cam is rotated by the print medium into the locked position, such that, in the locked position, the capper is held in the uncapped position until after a trailing edge of the print medium is clear of the printhead.
191. A mobile device according to claim 190, wherein the cam is resiliently biased to return to the unlocked position once the print medium edge moves past a predetermined position in the feed path, thereby causing the capper to return to the capped position.
192. A mobile device according to claim 190, wherein the at least one cam is mounted for rotation about an axis that is substantially normal to the print medium as it engages the cam in the feed path.
193. A mobile device according to claim 186, wherein print medium for use with the device includes a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing of the dot data;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
194. A mobile device according to claim 193, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
195. A mobile device according to claim 193, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
196. A mobile device according to claim 195, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
197. A mobile device according to claim 193, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
198. A mobile device according to claim 197, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
199. A mobile device according to claim 198, wherein the mobile device includes a transceiver, the mobile device being configured to receive the information indicative of the predetermined registration from a remote computer system via a transceiver.
200. A mobile device according to claim 197, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to determine a registration between what is being printed and the second coded data.
201. A mobile device according to claim 200, configured to transmit the determined registration to a remote computer system via the transceiver.
202. A mobile device including:
(a) an inkjet printhead;
(b) a print media feed path for directing print media past the printhead in a feed direction during printing; and (c) a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print media as it moves through the feed path.
203. A mobile device according to claim 202, wherein in the capped position the capper is resiliently urged into the capping relationship.
204. A mobile device according to claim 203, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
205. A mobile device according to claim 204, wherein the capping mechanism is farther configured such that the capper is simultaneously displaced in a direction away from the printhead as it is displaced in the feed direction.
206. A mobile device according to claim 205, wherein the capping mechanism is subsequently displaced in a direction opposite the feed direction in the uncapped position.
207. A m mobile device d according to claim 206, further including a locking mechanism for holding the capper in the uncapped position whilst the print media is being printed on by the printhead.
208. A mobile device according to claim 207, wherein the locking mechanism includes at least one cam mounted for rotation between an unlocked position and a locked position, the at least one cam being configured such that, in "the unlocked position, it extends at least partially into the feed path when print media is not present, the at least one cam being positioned and configured to engage an edge of the print media as the print media is fed through the feed path such that the at least one cam is rotated by the print media into the locked position, such that, in the locked position, the capper is held in the uncapped position until after a trailing edge of the media is clear of the printhead.
209. A mobile device according to claim 208, wherein the cam is resiliently biased to return to the unlocked position once the print media edge moves past a predetermined position in the feed path, thereby causing the capper to return to the capped position.
210. A mobile device according to claim 208, wherein the at least one cam is mounted for rotation about an axis that is substantially normal to the print media as it engages the cam in the feed path.
211. A mobile device according to claim 202, further comprising a drive shaft for engaging the print media and driving it past the inkjet printhead.
212. A mobile device according to claim 211, further comprising a drive roller for rotating the drive shaft, the drive roller being configured to be driven by a complementary drive mechanism in the mobile device when the cartridge is installed therein.
213. A mobile device according to claim 212, wherein the drive roller is coaxial with the drive shaft.
214. A mobile device according to claim 213, wherein the drive shaft is positioned in the print media path upstream of the printhead.
215. A mobile device according to claim 202 further comprising a printhead having an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles.
216. A mobile device according to claim 214 wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
217. A mobile device according to claim 202 wherein the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from a beacon operated by a print engine controller in the mobile device.
218. A mobile device according to claim 202 further comprising:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
219. A mobile device according to claim 202 further comprising at least one ink reservoir for supplying ink to the printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
220. A mobile device according to claim 202 wherein the mobile device is a telecommunication device.
221. A mobile device according to claim 202 wherein the mobile device is a mobile phone.
222. A mobile device including:
(a) an inkjet printhead;
(b) a print media feed path for directing print media past the printhead in a feed direction during printing;
(c) a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead;

(d) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
223. A mobile device according to claim 222, wherein the locking mechanism includes at least one cam mounted for rotation between an unlocked position and a locked position, the at least one cam being configured such that, in the unlocked position, it extends at least partially into the feed path when print media is not present, the at least one cam being positioned and configured to engage an edge of the print media as the print media is fed through the feed path such that the at least one cam is rotated by the print media into the locked position, such that, in the locked position, the capper is held in the uncapped position until after a trailing edge of the media is clear of the printhead.
224. A mobile device according to claim 223, wherein the cam is resiliently biased to return to the unlocked position once the print media edge moves past a predetermined position in the feed path, thereby causing the capper to return to the capped position.
225. A mobile device according to claim 223, wherein the at least one cam is mounted for rotation about an axis that is substantially normal to the print media as it engages the cam in the feed path.
226. A mobile device according to claim 222, wherein the locking mechanism is configured to hold the capper in the uncapped position until after the trailing edge of the media is clear of the capper, such that the capper can be released into the capped position without capturing the print media.
227. A mobile device according to claim 226, further including a locking mechanism for holding the capper in the uncapped position whilst the print media is being printed on by the printhead.
228. A mobile device according to claim 227, wherein the locking mechanism includes at least one cam mounted for rotation between an unlocked position and a locked position, the at least one cam being configured such that, in the unlocked position, it extends at least partially into the feed path when print media is not present, the at least one cam being positioned and configured to engage an edge of the print media as the print media is fed through the feed path such that the at least one cam is rotated by the print media into the locked position, such that, in the locked position, the capper is held in the uncapped position until after a trailing edge of the media is clear of the printhead.
229. A mobile device according to claim 228, wherein the cam is resiliently biased to return to the unlocked position once the print media edge moves past a predetermined position in the feed path, thereby causing the capper to return to the capped position.
230. A mobile device according to claim 228, wherein the at least one cam is mounted for rotation about an axis that is substantially normal to the print media as it engages the cam in the feed path.
231. A mobile device according to claim 222, further comprising a drive shaft for engaging the print media and driving it past the inkjet printhead.
232. A mobile device according to claim 231, further comprising a drive roller for rotating the drive shaft, the drive roller being configured to be driven by a complementary drive mechanism in the mobile device when the cartridge is installed therein.
233. A mobile device according to claim 232, wherein the drive roller is coaxial with the drive shaft.
234. A mobile device according to claim 233, wherein the drive shaft is positioned in the print media path upstream of the printhead.
235. A mobile device according to claim 222 further comprising a printhead having an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles.
236. A mobile device according to claim 234 wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
237. A mobile device according to claim 222 wherein the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from a beacon operated by a print engine controller in the mobile device.
238. A mobile device according to claim 222 further comprising:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
239. A mobile device according to claim 222 further comprising at least one ink reservoir for supplying ink to the printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
240. A mobile device according to claim 222 wherein the mobile device is a telecommunication device.
241. A mobile device according to claim 222 wherein the mobile device is a mobile phone.
242. A print medium for use with a printer, the print medium comprising:
a laminar substrate defining first and second opposite faces;
first coded data in a first data format disposed in a first data region on the laminar substrate, the first coded data encoding first information; and second coded data in a second data format disposed in a second data region on the laminar substrate, the second coded data encoding second information;
wherein the first information is indicative of the second information.
243. A print medium according to claim 242, wherein the first information is t he same as the second information.
244. A print medium according to claim 243, wherein the first information is a document identifier.
245. A print medium according to claim 242, wherein the first format is a linear pattern.
246. A print medium according to claim 245, wherein the second format is a two-dimensional pattern.
247. A print medium according to claim 245, wherein the first format is a linear-encoded data track.
248. A print medium according to claim 246, wherein the first format is a linear-encoded data track.
249. A print medium according to claim 247, wherein either or both of the first and second coded data are substantially invisible to the average unaided human eye.
250. A print medium according to claim 242, further including one or more additional regions, each of the one or more additional regions including further coded data in the first format.
251. A print medium according to claim 250, wherein the coded data in each of the additional regions includes the first information.
252. A print medium according to claim 251, wherein the coded data in each of the first region and the additional regions includes an orientation indicator that is unique to each of the respective first and additional regions.
253. A print medium according to claim 252, wherein each orientation indicator includes sufficient bits' worth of data to uniquely identify the region within which the corresponding coded data is disposed.
254. A print medium according to claim 253, wherein there are three of the additional regions, and wherein:
the first coded data and the coded data of one of the additional regions are disposed along opposite edges on a first of the faces; and the coded data of the remaining two additional regions are disposed along the opposite edges on the second of the faces.
255. A print medium according to claim 264, wherein the second coded data is disposed between the first coded data and the one of the additional regions on the first of the faces.
256. A print medium according to claim 255, including farther coded data in the second format, the further coded data being disposed between the additional regions on the second of the faces.
257. A print medium according to claim 242, further including human-readable information pre-printed on at least one of the faces.
258. A print medium according to claim 257, wherein the human-readable information includes at least one direction indicator.
259. A print medium according to claim 257, wherein the human-readable information includes at least one icon indicative of a function.
260. A print medium according to claim 247, wherein the first information includes an embedded clock signal.
261. A print medium according to claim 242, further including at least one clock track on at least one of the faces.
262. A mobile telecommunications device including:
a transceiver for sending and receiving signals via a wireless telecommunications network;
processing means for processing connection history information relating to communications sent to or from the mobile telecommunications device via the transceiver, to generate dot data representing a visual layout of the connection history information; and a integral printer configured to receive the dot data and print it onto a print medium.
263. A mobile telecommunications device according to claim 262, wherein the connection history information includes an originating address of at least one previous connection or attempted connection with the mobile telecommunications device.
264. A mobile telecommunications device according to claim 263, wherein the connection history information includes an identity of a person or other entity associated with the originating address.
265. A mobile telecommunications device according to claim 264, wherein the connection history information includes a human-readable indication that a voice-mail has been received from the originating address.
266. A mobile telecommunications device according to claim 262, wherein the connection history information includes one or more connections or connection attempts made via the mobile telecommunications device.
267. A mobile device according to claim 262, wherein the print medium includes a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing of the dot data;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
268. A mobile device according to claim 267, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
269. A mobile device according to claim 268, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
270. A mobile device according to claim 267, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
271. A mobile device according to claim 267, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
272. A mobile device according to claim 271, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
273. A mobile device according to claim 267, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
274. A mobile device according to claim 273, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
275. A mobile device according to claim 274, configured to receive the information indicative of the predetermined registration from a remote computer system via the transceiver.
276. A mobile device according to claim 273, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to determine a registration between what is being printed and the second coded data.
277. A mobile device according to claim 276, configured to transmit the determined registration to a remote computer system via the transceiver.
278. An ink cartridge for use in a mobile device, the ink cartridge including:

at least one ink reservoir for holding ink;
at least one baffle dividing the at least one ink reservoir into a plurality of sections, each of the sections in each ink reservoir being in fluid communication with each of the other sections in that ink reservoir via an aperture;
and at least one porous insert in each of the at least one reservoirs, such that substantially all of each ink reservoir is filled with the at least one porous insert.
279. An ink cartridge according to claim 278, wherein each reservoir includes a single porous insert including at least one recessed portion, each recessed portion being configured to engage one of the baffles in the reservoir.
280. An ink cartridge according to claim 279, wherein a surface of each porous insert around the recessed portion sealingly engages a surface of its corresponding baffle.
281. An ink cartridge according to claim 280, wherein the porous insert is of unitary construction.
282. An ink cartridge according to claim 281, wherein the porous insert is formed from open-celled foam.
283. An ink cartridge according to claim 279, further including a wick that extends along an edge of the at least one porous insert, the wick being configured to transport ink from the at least one porous insert to an ink distribution arrangement configured to distribute the ink to a pagewidth printhead forming part of the cartridge.
284. An ink cartridge according to claim 283, wherein the ink distribution arrangement includes a plurality of ink ducts.
285. An ink cartridge according to claim 278, configured such that ink within the at least one reservoir is held at a negative pressure with respect to ambient air pressure.
286. An ink cartridge according to claim 278, further including a plurality of the ink reservoirs, the ink reservoirs containing relatively different colored inks.
287. An ink cartridge according to claim 278, comprising:

a print media feed path for directing a print medium past the printhead in a feed direction during printing; and a drive mechanism for driving the print medium past the inkjet printhead for printing.
288. A cartridge according to claim 287, wherein the drive mechanism is a passive mechanism, including a media roller for engaging the print medium to drive it past the inkjet printhead.
289. A cartridge according to claim 288, further including a drive roller configured to be driven by a complementary drive mechanism in the mobile device when the cartridge is installed therein.
290. A cartridge according to claim 289, wherein the media roller is coaxial with the drive roller.
291. A cartridge according to claim 290, wherein the media roller is positioned in the print media path upstream of the printhead.
292. A cartridge according to claim 291, wherein the cartridge is configured such that, in use, the media roller drives the print medium such that a trailing edge of the print medium passes the printhead after having disengaged from the media roller.
293. A cartridge according to claim 292, wherein the drive roller is a cog.
294. A cartridge according to claim 289, wherein the drive roller includes a resilient peripheral edge.
295. A cartridge according to claim 278, comprising a capping mechanism for capping the printhead when it is not in use.
296. A cartridge according to claim 295, wherein the capping mechanism includes a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it is driven through the print media path.
297. A cartridge according to claim 278, comprising a sensor for sensing coded data on the print medium as it is being printed.
298. A print cartridge for a mobile telecommunications device, the cartridge comprising:
a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
299. A print cartridge according to claim 298 further comprising at least one ink reservoir, an inkjet printhead and a capper for capping the printhead when not in use.
300. A print cartridge according to claim 299 further comprising a rigid outer casing enclosing the ink reservoir, the printhead, and capper, the outer casing defining a media entry slot and a media exit slot.
301. A print cartridge according to claim 300 wherein the media guide is a series of sprung fingers extending from one side of the media entry slot towards the media engagement surface of the drive shaft.
302. A print cartridge according to claim 300 further comprising a drive roller mounted to the drive shaft, the drive roller having an elastomeric rim for abutting a drive system in the mobile telecommunications device.
303. A print cartridge according to claim 302 further comprising electrical contacts for power and print data on the outer casing, the contacts and the drive roller positioned for simultaneously engaging corresponding contacts and the drive system respectively upon insertion into the mobile telecommunications device.
304. A print cartridge according to claim 298 further comprising a printhead having an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
305. A print cartridge according to claim 298 further comprising:
(a) a printhead adjacent the feed path;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead;
(c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media reaching the capper.
306. A print cartridge according to claim 298 further comprising:
(a) a printhead adjacent the feed path;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
307. A print cartridge according to claim 298 further comprising:
(a) a printhead adjacent the feed path;

(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media; wherein, (c) the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
308. A print cartridge according to claim 298 further comprising:
a printhead for printing on to the media substrate; and, the media substrate is a sheet; wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
309. A print cartridge according to claim 298 further comprising a printhead, wherein the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from a beacon operated by a print engine controller in the mobile telecommunications device.
310. A print cartridge according to claim 298 wherein the mobile telecommunications device has a drive system for rotating the drive shaft by friction.
311. A print cartridge according to claim 298 further comprising:
an inkjet printhead for printing to the media substrate; and, the mobile telecommunications device comprises:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
312. A print cartridge according to claim 298 further comprising an inkjet printhead for printing to the media substrate; and, the mobile telecommunications device comprises:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
313. A print cartridge according to claim 298 further comprising at least one ink reservoir for supplying ink to a printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;

one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
314. A print cartridge according to claim 298 wherein the media substrate is a sheet with coded data on at least part of its surface; and the mobile telecommunications device further comprises a print engine controller for operatively controlling the printhead; and, a sensor for reading the coded data and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
315. A print cartridge according to claim 298 farther comprising a printhead for printing the media substrate, the media substrate having coded data on at least part of its surface; and, The mobile telecommunications device further comprising a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading the coded data before, as well as after, it has past the printhead.
316. A mobile telecommunications device comprising:
a printhead with an array of nozzles for printing a media substrate;
a capper assembly movable between a capped position covering the nozzles and an uncapped position spaced from the nozzles; wherein, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
317. A mobile telecommunications device according to claim 316 wherein the sheet of media substrate is encoded and the print engine controller uses an optical sensor to determine the position of the sheet relative to the printhead.
318. A mobile telecommunications device according to claim 316 further comprising a drive shaft for feeding the media past the printhead.
319. A mobile telecommunications device according to claim 318 wherein the media substrate is a sheet and the trailing edge of the sheet disengages from the drive shaft before it is printed and is projected past the printhead by its momentum.
320. A mobile telecommunications device according to claim 319 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
321. A mobile telecommunications device according to claim 320 wherein the capper assembly moves out of the capped position and toward the uncapped position upon engagement with the leading edge of the sheet.
322. A mobile telecommunications device according to claim 316 wherein the printhead is incorporated into a cartridge that further comprises a print media feed path for directing the print media past the printhead in a feed direction during printing, and a drive mechanism for driving the print media past the printhead for printing.
323. A mobile telecommunications device according to claim 316 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
324. A mobile telecommunications device according to claim 316 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media reaching the capper.
325. A mobile telecommunications device according to claim 319 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead;
(c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
326. A mobile telecommunications device according to claim 316 wherein the drive assembly has a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
327. A mobile telecommunications device according to claim 316 further comprising:
a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
328. A mobile telecommunications device according to claim 316 wherein the printhead comprises:

238 ~

an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from a beacon operated by a print engine controller.
329. A mobile telecommunications device according to claim 316 further comprising:
a drive shaft for feeding the sheet of media substrate past the printhead and a drive system to rotate the drive shaft;
wherein, the drive system rotates the drive roller by friction.
330. A mobile telecommunications device according to claim 316 further comprising:
a media feed assembly for feeding the media past the printhead;
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
331. A mobile telecommunications device according to claim 316 further comprising:
a drive shaft for feeding the media past the printhead; and, a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
332. A mobile telecommunications device according to claim 316 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
333. A mobile telecommunications device according to claim 316 wherein the media substrate is a sheet with coded data disposed on at least part of its surface; the mobile telecommunications device further comprising:
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a sensor for reading the coded data and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
334. A mobile telecommunications device according to claim 316 wherein the media substrate is a sheet with coded data disposed on at least part of its surface; the mobile telecommunications device further comprising:
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading the coded data before, as well as after, it has past the printhead.
335. A mobile telecommunications device comprising:
a printhead for printing a sheet of media substrate;
a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
336. A mobile telecommunications device according to claim 335 further comprising a media guide adjacent the drive shaft for biasing the media substrate against the drive shaft.
337. A mobile telecommunications device according to claim 335 further comprising a drive system for transmitting torque to the drive shaft, the drive system having a drive wheel wherein the drive shaft can be moved into contact with the rim of the drive wheel for the transfer of torque.
338. A mobile telecommunications device according to claim 337 further comprising:
a print engine controller for controlling the operation of the printhead; and, a position sensor connected to the print engine controller such that the print engine controller can determine the position of the media substrate relative to the printhead.
339. A mobile telecommunications device according to claim 338 wherein the position sensor reads encoded data on the media substrate.
340. A cartridge according to claim 335 wherein the position sensor senses the number of rotations of the drive shaft.
341. A mobile telecommunications device according to claim 335 wherein the printhead and the drive shaft are incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
342. A mobile telecommunications device according to claim 335 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
343. A mobile telecommunications device according to claim 335 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
344. A mobile telecommunications device according to claim 335 further comprising:
(a) a print media feed path for directing media substrate past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
345. A mobile telecommunications device according to claim 335 wherein the drive shaft has a media engagement surface for enhanced contact friction with the media substrate.
346. A mobile telecommunications device according to claim 335 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
347. A mobile telecommunications device according to claim 335 further comprising a print engine controller with a light emitting beacon, and the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
348. A mobile telecommunications device according to claim 335 wherein the drive shaft is driven by a piezo-electric resonant linear drive system.
349. A mobile telecommunications device according to claim 335 further comprising:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
350. A mobile telecommunications device according to claim 335 further comprising:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
351. A mobile telecommunications device according to claim 335 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
352. A mobile telecommunications device according to claim 335 further comprising:
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
353. A mobile telecommunications device according to claim 335 further comprising:
a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
354. A mobile device comprising:
a processor for outputting print data;
a replaceable printhead cartridge including a photosensor and a printhead for printing onto print media; and a light emitting device for receiving the print data and converting it into a modulated light signal;
wherein the photosensor and the light emitting device are positioned and orientated such that, in use, the photosensor receives the modulated light signal, the printhead being configured to print on the basis of the print data encoded in the modulated light signal.
355. A mobile device according to claim 354, wherein the light emitting device is a light emitting diode.
356. A mobile device according to claim 354, wherein the light emitting device is an organic light emitting diode.
357. A mobile device according to claim 354, wherein the photosensor is mounted directly to the printhead within the print cartridge.
358. A mobile device according to claim 354, further including:
a receptacle for holding the cartridge;
an energy storage device;
first electrical contacts connected to receive electrical power from the energy storage device; and second electrical contacts disposed on or in the printhead cartridge;
the first and second contacts being configured and arranged to electrically engage each other when the cartridge is installed in the receptacle.
359. A mobile device according to claim 358, wherein the energy storage device is a battery.
360. A mobile device according to claim 358, wherein the electrical power received by the cartridge via the first and second electrical contacts is used to power ink ejection mechanisms in the printhead.
361. A mobile device according to claim 360, wherein the ink ejection mechanisms are microelectromechanical systems.
362. A mobile device according to claim 361, wherein each of the ink ejection mechanisms includes a thermal bend actuator.
363. A mobile device according to claim 361, wherein each of the ink ejection mechanisms includes a heater for ejecting ink by vaporisation.
364. A mobile device according to claim 353 wherein the drive shaft has a media engagement surface for enhanced contact friction with the media substrate.
365. A mobile device according to claim 353 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
366. A mobile device according to claim 353 further comprising a print engine controller with a light emitting beacon, and the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
367. A mobile device according to claim 353 wherein the drive shaft is driven by a piezo-electric resonant linear drive system.
368. A mobile device according to claim 353 further comprising:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
369. A mobile device according to claim 353 further comprising:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
370. A mobile device according to claim 353 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
371. A mobile device according to claim 353 further comprising:
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
372. A mobile device according to claim 353 further comprising:
a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
373. A printhead for an inkjet printer with a print engine controller for operatively controlling the printhead, the printhead comprising:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, an optical sensor for optically receiving the print data from a beacon operated by the print engine controller.
374. A printhead according to claim 373 wherein the optical sensor is an IR
sensor and the beacon is an IR LED.
375. A printhead according to claim 373 wherein the printhead is part of a cartridge that can be inserted into the printer.
376. A printhead according to claim 373 wherein the inkjet printer is part of a mobile telecommunications device.
377. A mobile telecommunications device comprising:
a print engine controller with a light emitting beacon; and, a printhead with an array of nozzles for ejecting ink, print data circuitry for providing the nozzles with print data; and, a sensor for receiving the print data from the beacon.
378. A mobile telecommunications device according to claim 377 further comprising a drive shaft wherein the printhead and drive shaft are incorporated into a replaceable cartridge for insertion into a media feed path within the mobile telecommunications device.
379. A mobile telecommunications device according to claim 377 wherein the printhead is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
380. A mobile telecommunications device according to claim 377 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
381. A mobile telecommunications device according to claim 377 further comprising:
(a) a print media feed path for directing media substrate past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
382. A mobile telecommunications device according to claim 377 further comprising a drive shaft with a media engagement surface for enhanced contact friction with the media substrate.
383. A mobile telecommunications device according to claim 377 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
384. A mobile telecommunications device according to claim 377 wherein the sensor is a photosensor for optically receiving the print data from the beacon.
385. A mobile telecommunications device according to claim 377 further comprising a drive shaft driven by a piezo-electric resonant linear drive system.
386. A mobile telecommunications device according to claim 377 further comprising:
a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
387. A mobile telecommunications device according to claim 377 wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
388. A mobile telecommunications device according to claim 377 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
389. A mobile telecommunications device according to claim 377 further comprising:
a media feed assembly for feeding a sheet of the media substrate along a feed path past the printhead; and, a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
390. A mobile telecommunications device according to claim 377 further comprising:

a print engine controller for operatively controlling the printhead; and, a dual sensor facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
391. A mobile telecommunications device according to claim 377 further comprising:
a drive shaft for feeding a sheet of the media substrate along a feed path past the printhead, wherein the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
392. A print cartridge for an inkjet printer with a media drive assembly, the cartridge comprising:
a drive shaft for feeding a media substrate past a printhead, the drive shaft positoned such that it engages the media drive assembly upon installation of the cartridge; wherein during use, the drive assembly transfer torque to the drive shaft by contact friction.
393. A cartridge according to claim 392 wherein the drive shaft has a drive wheel mounted to it for the frictional engagement with the drive assembly.
394. A cartridge according to claim 393 wherein the rim of the drive wheel is formed from an elastomeric material.
395. A cartridge according to claim 394 wherein the drive assembly has an idler roller to provide the frictional contact with the drive wheel.
396. A cartridge according to claim 395 wherein the drive assembly has an electric motor to drive the idler roller.
397. A cartridge according to claim 395 wherein the drive assembly has a piezo electric resonating linear drive to drive the idler roller.
398. A print cartridge according to claim 392 wherein the printhead has an array of ink ejection nozzles and at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
399. A print cartridge according to claim 392 further comprising:
(a) a capping mechanism with a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and, (b) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media reaching the capper.
400. A print cartridge according to claim 392 further comprising:
(a) a capping mechanism with a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; and (b) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.
401. A print cartridge according to claim 392 further comprising:
(a) a capping mechanism with a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the print media; wherein, (b) the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
402. A print cartridge according to claim 392 wherein the media substrate is a sheet that, during use, disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
403. A print cartridge according to claim 392 wherein the printer has a print engine controller with a light emitting beacon, and the printhead comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
404. A print cartridge according to claim 392 wherein the printer is incorporated into a mobile telecommunications device.
405. A print cartridge according to claim 392 wherein the cartridge incorporates the printhead; and, the printer comprises:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
406. A print cartridge according to claim 392 wherein the cartridge incorporates the printhead; and, the printer comprises:
a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
407. A print cartridge according to claim 392 further comprising at least one ink reservoir for supplying ink to the printhead, the at least one ink reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
408. A print cartridge according to claim 392 wherein the media substrate is a sheet with coded data on at least part of its surface; and the printer further comprises a print engine controller for operatively controlling the printhead; and, a sensor for reading the coded data and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
409. A print cartridge according to claim 392 wherein the media substrate has coded data on at least part of its surface; and, the printer further comprising a print engine controller for operatively controlling the printhead; and, a dual sensing facility for reading the coded data before, as well as after, it has past the printhead.
410. A print cartridge according to claim 392 wherein the drive shaft has a media engagement surface for feeding a media substrate along a feed path; and, the cartridge further comprises a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
411. A mobile telecommunications device comprising:
an inkjet printhead for printing to a media substrate;
a media feed assembly for feeding the media past the printhead;
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
412. A mobile telecommunications device according to claim 411 wherein the media substrate is printed with encoded data and the position sensor optically reads the encoded data to generate the signal indicative of the position of the media substrate relative to printhead.
413. A mobile telecommunications device according to claim 411 wherein the media feed assembly has a media feed roller with encoding, such that the position sensor optically reads the encoding to sense the number of complete and partial rotations of the media feed roller to generate the signal indicative of the position of the media substrate relative to the printhead.
414. A mobile telecommunications device according to claim 413 wherein the printhead has an array of nozzles and a capper assembly movable between a capped position covering the printhead nozzles and an uncapped position spaced from the printhead nozzles, the capper assembly being adapted for engagement with the media substrate to move it away of the capped position and towards the uncapped position.
415. A mobile telecommunications device according to claim 414 wherein the media substrate is a sheet with a leading edge that engages the capper assembly and a trailing edge that disengages from the media feed roller before it is printed and is projected past the printhead by its momentum such that the media feed roller accelerates from the reduction in load and the sheet decelerates from friction.
416. A mobile telecommunications device according to claim 415 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
417. A mobile telecommunications device according to claim 411 wherein the media feed assembly has a drive shaft, the drive and the printhead being incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
418. A mobile telecommunications device according to claim 411 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
419. A mobile telecommunications device according to claim 411 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
420. A mobile telecommunications device according to claim 411 further comprising:
(a) a print media feed path for directing media substrate past the printhead in a feed direction during printing;

(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
421. A mobile telecommunications device according to claim 411 wherein the media feed assembly has a drive shaft with a media engagement surface for enhanced contact friction with the media substrate.
422. A mobile telecommunications device according to claim 411 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
423. A mobile telecommunications device according to claim 411 wherein the print engine controller has a light emitting beacon, and the printhead further comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a sensor for receiving the print data from the beacon.
424. A mobile telecommunications device according to claim 411 wherein the media feed assembly has a drive shaft driven by a piezo-electric resonant linear drive system.
425. A mobile telecommunications device according to claim 411 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
426. A mobile telecommunications device according to claim 411 further comprising:
a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
427. A mobile telecommunications device according to claim 411 further comprising a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
428. A mobile telecommunications device comprising:

an inkjet printhead for printing to a media substrate;
a drive shaft for feeding the media past the printhead; and, a print engine controller for operatively controlling the printhead; wherein during use, the print engine controller senses the number of complete and partial rotations of the media feed roller and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
429. A mobile telecommunications device according to claim 428 wherein the drive shaft has optical encoding and the print engine controller uses an optical sensor to sense the number of complete and partial rotations of the drive shaft.
430. A mobile telecommunications device according to claim 428 wherein the printhead has a capper assembly movable between a capped position covering the printhead nozzles and an uncapped position spaced from the printhead nozzles, the capper assembly being adapted for engagement with the media substrate to move it away of the capped position and towards the uncapped position.
431. A mobile telecommunications device according to claim 430 wherein the media substrate is a sheet with a leading edge that engages the capper assembly and a trailing edge that disengages from the drive shaft before it is printed and is projected past the printhead by its momentum such that the drive shaft accelerates from the reduction in load and the sheet decelerates from friction.
432. A mobile telecommunications device according to claim 431 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
433. A mobile telecommunications device according to claim 432 wherein the capper assembly returns to the capped position after the sheet has been manually collected from the mobile telecommunications device.
434. A mobile telecommunications device according to claim 428 wherein the printhead and the drive shaft are incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
435. A mobile telecommunications device according to claim 428 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
436. A mobile telecommunications device according to claim 428 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
437. A mobile telecommunications device according to claim 428 further comprising:
(a) a print media feed path for directing the media substrate past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
438. A mobile telecommunications device according to claim 428 wherein the drive shaft has a media engagement surface for enhanced contact friction with the media substrate.
439. A mobile telecommunications device according to claim 428 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
440. A mobile telecommunications device according to claim 428 wherein the print engine controller has a light emitting beacon, and the printhead further comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
441. A mobile telecommunications device according to claim 428 wherein the drive shaft is driven by a piezo-electric resonant linear drive system.
442. A mobile telecommunications device according to claim 428 further comprising:
a print engine controller for operatively controlling the printhead; and, a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
443. A mobile telecommunications device according to claim 428 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
444. A mobile telecommunications device according to claim 428 further comprising a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
445. A mobile telecommunications device according to claim 428 further comprising a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
446. A mobile telecommunications device comprising a printhead for printing on a media substrate;
a drive shaft for feeding the media substrate past the printhead;
a print engine controller for operatively controlling the printhead; and, an ink reservoir for supplying ink to the printhead, the reservoir having:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
447. A mobile telecommunications device according to claim 446 wherein the at least one conduit has a cross sectional area small enough such that capillary action prevents ink from draining of the conduit under gravity regardless of the orientation of the housing.
448. A mobile telecommunications device according to claim 446 wherein the at least one conduit is defined by one or more channels formed in the exterior surface of the housing and covered by a sealing film adhered to the exterior surface, the sealing film having apertures for each of the outlets respectively for fluid communication with the printhead.
449. A mobile telecommunications device according to claim 446 wherein the housing defines three of the ink storage volumes, each of the ink storage volumes being elongate and having the baffles extending transversely across each of the storage volumes respectively.
450. A mobile telecommunications device according to claim 446 wherein each of the sections contains an ink retaining structure incorporating porous material such that, capillary action reduces the hydrostatic pressure of the ink within inactive nozzles of the printhead to less than atmospheric.
451. A mobile telecommunications device according to claim 446 wherein the printhead is a pagewidth printhead.
452. A mobile telecommunications device according to claim 446 wherein the printhead and the drive shaft are incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
453. A mobile telecommunications device according to claim 446 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
454. A mobile telecommunications device according to claim 446 further comprising:
(a) a print media feed path for directing print media past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
455. A mobile telecommunications device according to claim 446 further comprising:
(a) a print media feed path for directing media substrate past the printhead in a feed direction during printing;
(b) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (c) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
456. A mobile telecommunications device according to claim 446 wherein the drive shaft has a media engagement surface for enhanced contact friction with the media substrate.
457. A mobile telecommunications device according to claim 451 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
458. A mobile telecommunications device according to claim 446 wherein the print engine controller has a light emitting beacon, and the printhead further comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
459. A mobile telecommunications device according to claim 451 wherein the drive shaft is driven by a piezo-electric resonant linear drive system.
460. A mobile telecommunications device according to claim 446 further comprising:
a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
461. A mobile telecommunications device according to claim 446 wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
462. A mobile telecommunications device according to claim 446 further comprising:
a sensor for reading coded data on at least part of the media substrate and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that,the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
463. A mobile telecommunications device according to claim 451 further comprising:a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
464. A print medium configured to be printed on by a mobile device in a print direction, the print medium comprising:
a laminar substrate defining first and second opposite faces; and a data track containing first information encoded in accordance with a linear encoding scheme, the data track extending in a linear read direction across a portion of the first face of the print medium, the read direction being oriented at between 45 and 135 degrees with respect to the print direction.
465. A print medium according to claim 464, wherein the read direction is orientated at about 90 degrees with respect to the print direction.
466. A print medium according to claim 464, further including a leading edge and trailing edge opposite the leading edge, the print medium being designed for insertion leading-edge-first into the mobile device for printing, wherein the data track is positioned closer to the leading edge than to the trailing edge.
467. A print medium according to claim 466, wherein the data track is positioned at or adjacent the leading edge.
468. A print medium according to claim 466, wherein the data track is printed in infrared ink.
469. A print medium according to claim 468, wherein the data track is printed in infrared ink that is substantially invisible to an average unaided human eye.
470. A print medium according to claim 466, further including coded data containing second information encoded in accordance with a second encoding scheme distinct from the linear encoding scheme, wherein the first information is indicative of the second information.
471. A print medium according to claim 470, wherein the first information is the same as the second information.
472. A print medium according to claim 471, wherein the first and second information are a document identifier.
473. A method of printing onto a print medium according to claim 470, using a mobile device that includes a printhead and a data track reader, the method comprising the steps of:
(a) receiving the print medium into the mobile device;
(b) reading the data track;
(c) decoding the data track to obtain the first information;
(d) printing onto the print medium at least partially in reliance on first information determined from the decoded data track.
474. A method according to claim 473, wherein step (d) includes the substeps of:
(e) sending a first message to a remote computer system, the first message containing the first information;
(f) receiving a second message from the remote computer, the second message being indicative of whether printing is authorised for the print medium; and (g) printing onto the print medium in the event the second message confirms that the printing is authorised.
475. A method according to claim 474, including receiving print data from the remote computer system in response to the first message, step (g) including printing onto the print medium based at least partially on the print data.
476. A method according to claim 473, wherein the first information is indicative of a physical characteristic of the print medium.
477. A method according to claim 476, wherein the first information is indicative of a size of the print medium.
478. A method according to claim 476, wherein the first information is indicative of a media type associate with the print medium.
479. A method according to claim 476, wherein the first information is indicative of information pre-printed onto the print medium.
480. A method according to claim 476, wherein the first information is indicative of an identity of the print medium.
481. A print medium according to claim 464, further including a second linear-encoded data track extending along at least a portion of at least one face of the print medium.
482. A print medium according to claim 481, wherein the second linear-encoded data track is printed in infrared ink that is substantially invisible to an average unaided human eye.
483. A print medium according to claim 482, wherein the second linear-encoded data track includes an extractable clock useable by the mobile device in synchronizing printing onto the print medium.
484. A method of printing onto a print medium using a mobile device with a printhead and sensor, the print medium comprising:
a laminar substrate defining first and second opposite faces; and a data track containing first information encoded in accordance with a linear encoding scheme, the data track extending in a linear read direction across a portion of the first face of the print medium, the read direction being oriented at between 45 and 135 degrees with respect to the print direction;
the method comprising the steps of:
receiving the print medium into a media feed path of the mobile device;
using the sensor to sense the data track at least once before or during printing onto the print medium with the printhead; and determining a lateral registration of the data track relative to the sensor.
485. A method according to claim 484, wherein the print medium includes coded data having a predetermined positional relationship relative to the data track, the method including determining, in the mobile device and based on the determined lateral registration, a lateral registration of the coded data with respect to the media feed path before or during printing.
486. A method according to claim 485, wherein the coded data encodes second information, the first information being indicative of the second information, the method including the step of decoding the data track to determine the first information.
487. A method according to claim 486, wherein the first information is the same as the second information.
488. A method according to claim 487, wherein the first and second information are a document identifier.
489. A method according to claim 484, comprising the step of printing onto the print medium with the printhead at least partially in reliance on determined lateral registration.
490. A method according to claim 486, comprising the step of printing onto the print medium with the printhead at least partially in reliance on first information determined from the decoded data track.
491. A method according to claim 490, wherein the printing step includes the substeps of:
sending a first message to a remote computer system, the first message containing the first information;
receiving a response from the remote computer, the response being indicative of whether printing is authorised for the print medium; and printing onto the print medium in the event the response confirms that the printing is authorised.
492. A method according to claim 491, comprising receiving print data from the remote computer system in response to the first message, the printing step comprising printing onto the print medium based at least partially on the print data.
493. A method according to claim 484, wherein the first information is indicative of a physical characteristic of the print medium.
494. A method according to claim 493, wherein the first information is indicative of a size of the print medium.
495. A method according to claim 493, wherein the first information is indicative of a media type associate with the print medium.
496. A method according to claim 493, wherein the first information is indicative of information pre-printed onto the print medium.
497. A method according to claim 493, wherein the first information is indicative of an identity of the print medium.
498. A method according to claim 484, the print medium further including a second linear-encoded data track extending along at least a portion of at least one face of the print medium, the method including the steps of sensing the second data track during printing onto the print medium;
deriving a clock signal from the sensed second data track; and synchronizing printing based on the clock signal.
499. A method according to claim 484, the mobile device including a light emitting device, the method including illuminating the data track with the light emitting device during sensing of the data track.
500. A method according to claim 499, wherein the data track is printed in infrared ink, and the light emitting device emits light in the infrared spectrum.
501. A print medium configured to be printed on by a mobile device in a print direction, the print medium comprising:
a laminar substrate defining first and second opposite faces; and a data track containing first information encoded in accordance with a linear encoding scheme, the data track extending in a linear read direction along the print medium in the print direction, the linear encoding scheme being selected to enable clock data to be extracted from it while the print medium is being moved past a printhead in the mobile device, for use in synchronizing printing onto the print medium using the printhead.
502. A print medium according to claim 501, wherein the data track is disposed at or adjacent an edge of the print medium, the edge extending in the print direction.
503. A print medium according to claim 501, wherein the data track is printed in infrared ink.
504. A print medium according to claim 503, wherein the data track is printed in infrared ink that is substantially invisible to an average unaided human eye.
505. A print medium according to claim 501, further including coded data containing second information encoded in accordance with a second encoding scheme distinct from the linear encoding scheme, wherein the first information is indicative of the second information.
506. A print medium according to claim 505, wherein the first information is the same as the second information.
507. A print medium according to claim 506, wherein the first and second information are a document identifier.
508. A method of printing onto a print medium according to claim 505, using a mobile device that includes a printhead and a data track reader, the method comprising the steps of:
(a) receiving the print medium into the mobile device;
(b) reading the data track using the data track reader during a printing operation;
(c) extracting a clock signal from the read data track;
(d) printing onto the print medium at least partially in reliance on the clock signal.
509. A method according to claim 508, further including the steps of:
(f) extracting the first information from the read data track;
(g) sending a first message to a remote computer system, the first message containing the first information;

(h) receiving a second message from the remote computer, the second message being indicative of whether printing is authorised for the print medium; and (i) printing onto the print medium in the event the second message confirms that the printing is authorised.
510. A method according to claim 509, further including a step (j), performed prior to step (f), of reading the data track using the data track reader at a separate time to step (b), and using the data read in step (j) to perform steps (f) to (i).
511. A method according to claim 509, including receiving print data from the remote computer system in response to the first message, step (g) including printing onto the print medium based at least partially on the print data.
512. A method according to claim 501, wherein the first information is indicative of a physical characteristic of the print medium.
513. A method according to claim 512, wherein the first information is indicative of a size of the print medium.
514. A method according to claim 512, wherein the first information is indicative of a media type associate with the print medium.
515. A method according to claim 512, wherein the first information is indicative of information pre-printed onto the print medium.
516. A method according to claim 512, wherein the first information is indicative of an identity of the print medium.
517. A method according to claim 501, further including a plurality of the data tracks disposed in different places on the print medium.
518. A method according to claim 501, wherein the data track includes at least one orientation indicator.
519. A print medium according to claim 518, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
520. A print medium according to claim 519, the print medium having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through a media feed path of the mobile device, at least one of the at least one orientation indicators being disposed on or in the print medium at or adjacent the leading edge
521. A mobile device for printing onto a print medium, the print medium including a linear-encoded data track extending in an intended direction of printing, the mobile device including:
a sensor configured to sense the data track during printing;

a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
522. A mobile device according to claim 521, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
523. A mobile device according to claim 522, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
524. A mobile device according to claim 521, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
525. A mobile device according to claim 521, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
526. A mobile device according to claim 525, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
527. A mobile device according to claim 521, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
528. A mobile device according to claim 527, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to print onto the print medium such that there is a predetermined registration between what is being printed and the second coded data.
529. A mobile device according to claim 528, further including a receiver for receiving print data to be printed and information indicative of the predetermined registration.
530. A mobile device according to claim 527, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information, wherein the mobile device is configured to:
print onto the print medium;
determine a registration between what is being printed and the second coded data.
531. A mobile device according to claim 530, further including a transmitter for transmitting the determined registration to a remote computer system.
532. A method according to claim 526, wherein the first information is indicative of a size of the print medium.
533. A method according to claim 526, wherein the first information is indicative of a media type associate with the print medium.
534. A method according to claim 526, wherein the first information is indicative of information pre-printed onto the print medium.
535. A method according to claim 526, wherein the first information is indicative of an identity of the print medium.
536. A method according to claim 521, further including a plurality of the data tracks disposed in different places on the print medium.
537. A method according to claim 521, wherein the data track includes at least one orientation indicator.
538. A print medium according to claim 538, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
539. A print medium according to claim 539, the print medium having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through a media feed path of the mobile device, at least one of the at least one orientation indicators being disposed on or in the print medium at or adjacent the leading edge
540. A print medium configured to be printed on by a mobile device in a print direction, the print medium comprising:
a laminar substrate defining first and second opposite faces; and coded data encoding first information, the first information being indicative of a physical characteristic of the print medium.
541. A print medium according to claim 540, wherein the first information is indicative of a size of the print medium.
542. A print medium according to claim 540, wherein the first information is indicative of a media type associate with the print medium.
543. A print medium according to claim 540, wherein the first information is indicative of information pre-printed onto the print medium.
544. A print medium according to claim 540, wherein the first information is encoded into the coded data in accordance with a linear encoding scheme.
545. A print medium according to claim 544, wherein the coded data takes the form of a data track.
546. A print medium according to claim 545, wherein the data track extends along an edge of the print medium.
547. A print medium according to claim 545, including at least two of the data tracks, each of which encodes the first information.
548. A print medium according to claim 547, wherein the first information is identical in all the data tracks.
549. A print medium according to claim 547, wherein each of the data tracks includes at least one orientation indicator indicative of an orientation of the print medium.
550. A print medium according to claim 549, wherein the orientation indicator is different in each of the data tracks to account for differences in position and orientation of the respective data tracks relative to the print medium.
551. A print medium according to claim 550, wherein one of the orientation indicators is positioned adjacent a first corner of the print medium on the first face.
552. A print medium according to claim 551, wherein another of the orientation indicators is positioned adjacent a second corner of the print medium on the first face, the second corner being diagonally opposite the first corner.
553. A print medium according to claim 545, wherein the data track further includes at least one orientation indicator indicative of an orientation of the print medium.
554. A print medium according to claim 540, wherein the data track is printed in infrared ink.
555. A print medium according to claim 554, wherein the data track is printed in infrared ink that is substantially invisible to an average unaided human eye.
556. A print medium according to claim 554, further including coded data containing second information encoded in accordance with a second encoding scheme distinct from the linear encoding scheme, wherein the first information is indicative of the second information.
557. A mobile device for printing onto a print medium in a print direction, the print medium including first coded data that encodes first information, mobile device comprising:
a first sensor for sensing the first coded data;
processing means for decoding the coded data and extracting at least the first information; and a printhead for printing onto the print medium, wherein the printhead is controlled to print onto the print medium at least partially on the basis of the extracted first information, and printing does not commence until all of the first information has been extracted.
558. A mobile device according to claim 557, wherein the first information is indicative of an identity of the print medium.
559. A mobile device according to claim 558, wherein the first coded data is encoded in a data track in accordance with a linear encoding scheme, and the print medium includes second coded data encoded in an encoding scheme different from the linear encoding scheme, at least some of the first information being indicative of second information encoded in the second coded data.
560. A mobile device according to claim 559, wherein the first and second information are indicative of the identity of the print medium.
561. A mobile device according to claim 560, wherein the mobile device includes a transmitter configured to transmit a first message to a remote computer system, the first message being indicative of the identity of the print medium.
562. A mobile device according to claim 561, wherein the mobile device includes a receiver for receiving a second message in reply to the first message, the second message being indicative of whether the print medium can be printed on, the mobile device being configured to await the second message before determining whether to print onto the print medium.
563. A mobile device according to claim 557, further including a media drive means for driving the print medium past the printhead during printing.
564. A mobile device according to claim 563, defining a print path along which the print medium travels past the printhead, wherein the drive means is disposed upstream of the sensor in the print path.
565. A mobile device according to claim 562, wherein the sensor is disposed between the drive means and the printhead.
566. A mobile device according to claim 563, wherein the drive means is reversible, thereby enabling the print medium to be driven past the sensor in the print direction to allow reading of the first coded data, reversed until the print medium is positioned substantially upstream of the printhead, then driven in the print direction past the printhead during printing.
567. A mobile device according to claim 564, configured to:
sense the first coded data while the print medium is being driven past the printhead during printing;
extract a clock signal from the first coded data; and use the clock signal the provide a fire control signal to the printhead, thereby to synchronise printing with movement of the print medium.
568. A mobile device according to claim 557, defining a print path along which the print medium travels past the printhead, wherein the drive means includes first and second drive mechanisms disposed in the print path upstream and downstream, respectively, of the printhead.
569. A mobile device according to claim 565, wherein the sensor is disposed between the first and second drive mechanisms.
570. A mobile device according to claim 567, configured to:
sense the first coded data while the print medium is being driven past the printhead during printing;
extract a clock signal from the first coded data; and use the clock signal the provide a fire control signal to the printhead, thereby to synchronise printing with movement of the print medium.
571. A mobile device according to claim 565, wherein the first coded data includes a separate clock track parallel to the linear encoded first information, the mobile device being configured to generate the clock signal from the clock track during printing.
572. A mobile device according to claim 568, wherein the first coded data includes a separate clock track parallel to the linear encoded first information, the mobile device being configured to generate the clock signal from the clock track during printing.
573. A mobile device according to claim 557, further including a light-emitting device positioned to output light onto the first coded data to enable sensing thereof with the sensor.
574. A mobile device according to claim 571, wherein the first coded data is printed in infrared ink and the light-emitting device emits light in the infrared spectrum.
575. A mobile device according to claim 571, wherein the first coded data is printed in infrared ink that is substantially invisible to an average unaided human eye.
576. A mobile device for printing onto a print medium in a print direction, the print medium including first coded data that encodes first information, mobile device comprising:
a first sensor for sensing the first coded data;
processing means for decoding the coded data and extracting at least the first information; and a printhead for printing onto the print medium, wherein the printhead is controlled to print onto the print medium at least partially on the basis of the extracted first information, and printing commences prior to all of the first information being extracted.
577. A mobile device according to claim 576, wherein the first information is indicative of an identity of the print medium.
578. A mobile device according to claim 577, wherein the first coded data is encoded in a data track in accordance with a linear encoding scheme, and the print medium includes second coded data encoded in an encoding scheme different from the linear encoding scheme, at least some of the first information being indicative of second information encoded in the second coded data.
579. A mobile device according to claim 578, wherein the first and second information are indicative of the identity of the print medium.
580. A mobile device according to claim 579, wherein the mobile device includes a transmitter configured to transmit a first message to a remote computer system, the first message being indicative of the identity of the print medium.
581. A mobile device according to claim 580, wherein the mobile device includes a receiver for receiving a second message in reply to the first message, the second message being indicative of whether the print medium can be printed on, the mobile device being configured to halt printing in the event the second message indicates that the print medium is not to be printed on.
582. A mobile device according to claim 582, further including a media drive means for driving the print medium past the printhead during printing.
583. A mobile device according to claim 582, defining a print path along which the print medium travels past the printhead, wherein the drive means is disposed upstream of the sensor in the print path.
584. A mobile device according to claim 581, wherein the sensor is disposed between the drive means and the printhead.
585. A mobile device according to claim 576, configured to:
sense the first coded data while the print medium is being driven past the printhead during printing;
extract a clock signal from the first coded data; and use the clock signal the provide a fire control signal to the printhead, thereby to synchronise printing with movement of the print medium.
586. A mobile device according to claim 576, wherein the first coded data includes a separate clock track in addition to the first information, the mobile device being configured to generate the clock signal from the clock track during printing.
587. A mobile device according to claim 576, further including a light-emitting device positioned to output light onto the first coded data to enable sensing thereof with the sensor.
588. A mobile device according to claim 585, wherein the first coded data is printed in infrared ink and the light-emitting device emits light in the infrared spectrum.
589. A mobile device according to claim 586, wherein the first coded data is printed in infrared ink that is substantially invisible to an average unaided human eye.
590. A mobile device according to claim 586, wherein the printhead forms part of a replaceable cartridge.
591. A mobile device according to claim 588, wherein the cartridge includes at least one ink reservoir.
592. A mobile device according to claim 588, wherein the cartridge includes at least one capping mechanism for capping the printhead when it is not printing.
593. A mobile device according to claim 591, wherein the capping mechanism includes a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the media path.
594. A mobile device according to claim 592, wherein in the capped position the capper is resiliently urged into the capping relationship.
595. A mobile device according to claim 576, wherein the processing means is configured to extract a clock signal from the sensed coded data, the clock signal being used to synchronize printing onto the print medium.
596. A mobile telecommunications device comprising:

a first receiver for receiving signals from a mobile telephony system;

a first transmitter for transmitting signals over the mobile telephony system;
and a sylus allowing the user to use the mobile telecommunications device as a writing or drawing device.
597. A mobile telecommunications device according to claim 596 further comprising:

a first sensor device for sensing coded data and for outputting raw data based on said sensed data; and a transmitter controller operable to control the first transmitter to transmit output data based at least partially on said sensed data via the mobile telephony system to a computer system.
598. A mobile telecommunications device according to claim 597 wherein the first sensing device is postioned on the stylus.
599. A mobile telecommunications device according to claim 597 wherein the sylus has a printhead tip with an array of nozzles to effect the writing or drawing.
600. A mobile telecommunications device according to claim 596 further comprising a printer mechanism with a pagewidth printhead for printing on a media substrate, the printhead positioned adjacent a media feed path through the device.
601. A mobile telecommunications device according to claim 600 wherein the printer mechanism is adapted to receive document data and to print an interface onto a surface, the interface being at least partially based on the document data, the document data including identity data indicative of at least one identity, the identity being associated with a region of the interface, the interface including coded data.
602. A mobile telecommunications device according to claim 600 further comprising at least one ink reservoir wherein the printhead tip in the stylus and the printer mechanism share the at least one ink reservoir.
603. A mobile telecommunications device according to claim 600 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
604. A mobile telecommunications device according to claim 600 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
605. A mobile telecommunications device according to claim 600 further comprising a transmitter controller adapted to cause the mobile telephone unit to transmit data based on the first data to a computer system via the first transmitter.
606. A mobile telecommunications device according to claim 599 wherein the printer mechanism further comprises a capper assembly movable between a capped position covering the nozzles and an uncapped position spaced from the nozzles; wherein, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
607. A mobile telecommunications device according to claim 606 wherein the sheet of media substrate is encoded with the coded data and the print engine controller uses a sensor to determine the position of the sheet relative to the printhead.
608. A mobile telecommunications device according to claim 606 further comprising a media feed roller for feeding the media past the printhead.
609. A mobile telecommunications device according to claim 606 wherein the media substrate is a sheet and the trailing edge of the sheet disengages from the media feed roller before it is printed and is projected past the printhead by its momentum.
610. A mobile telecommunications device according to claim 609 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
611. A mobile telecommunications device according to claim 606 wherein the capper assembly moves out of the capped position and toward the uncapped position upon engagement with the leading edge of the sheet.
612. A mobile telecommunications device according to claim 606 wherein the printhead is incorporated into a cartridge that further comprises a print media feed path for directing the print media past the printhead in a feed direction during printing, and a drive mechanism for driving the print media past the printhead for printing.
613. A mobile telecommunications device according to claim 606 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
614. A mobile telecommunications device according to claim 606 further comprising a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
615. A mobile telecommunications device according to claim 605 further comprising:
a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
616. A print medium configured to be printed on by a mobile device in a print direction, the print medium comprising a laminar substrate defining first and second opposite faces, the laminar substrate comprising a first portion to be printed on by the mobile device, and a second portion attached to the second portion by a relatively weak region in the substrate, the second portion being detachable from the first portion.
617. A print medium according to claim 616, including a linear track from which a clock signal can be extracted by the mobile device for use in synchronising printing onto the first portion.
618. A print medium according to claim 617, wherein the linear track is at least partially disposed on the second portion.
619. A print medium according to claim 618, wherein the linear track extends on both the first and second portions in a continuous fashion.
620. A print medium according to claim 619, wherein the linear track is a linear-encoded data track containing first information extractable by the mobile device prior to or during printing.
621. A print medium according to claim 620, further including coded data encoded in a format different from the linear encoding, the coded data containing second information, wherein the first information is indicative of the second information.
622. A print medium according to claim 619, wherein the linear track extends along the print medium in the print direction.
623. A print medium according to claim 622, wherein the linear track is disposed at or adjacent an edge of the print medium, the edge extending in the print direction.
624. A print medium according to claim 616, wherein the relatively weak region is a perforated line extending across the print medium in direction generally normal to the print direction.
625. A print medium according to claim 616, wherein the relatively weak region is shaped such that, once the second portion is detached from the first portion, an edge of the first portion revealed by removal of the second portion is shaped substantially the same, in plan view, as an edge of the first portion at an opposite end of the first portion.
626. A print medium according to claim 618, wherein the linear track includes at least one orientation indicator indicative of an orientation of the print medium.
627. A print medium according to claim 624, wherein the orientation indicator is disposed at or adjacent an edge of the second portion distant from the weak region.
628. A print medium according to claim 625, including a further orientation indicator in the linear track, the further orientation indicator being positioned on the first portion at or adjacent the weak region.
629. A print medium according to claim 616, wherein the data track is printed in infrared ink.
630. A print medium according to claim 627, wherein the data track is printed in infrared ink that is substantially invisible to an average unaided human eye.
631. A print medium according to claim 616, further including pre-printed human readable information on at least one of the faces.
632. A print medium according to claim 616, wherein the second portion includes coded data encoded in a format different from the linear encoding, the coded data containing second information.
633. A print medium according to claim 630, wherein the second portion includes pre-printed human readable information indicative of the second portion being a lottery ticket.
634. A print medium according to claim 620, wherein the first information is indicative of a physical characteristic of the print medium.
635. A print medium according to claim 632, wherein the first information is indicative of a size of the print medium.
636. A print medium according to claim 632, wherein the first information is indicative of a media type associate with the print medium.
637. A print medium according to claim 632, wherein the first information is indicative of information pre-printed onto the print medium.
638. A method of using a mobile device to read coded data from a print medium configured to be printed on by the mobile device in a print direction, the mobile device including a printer, a sensor and processing means, the print medium comprising a laminar substrate defining first and second opposite faces, the first face bearing coded data, the method comprising the steps of:
using the sensor to sense at least some of the coded data from the print medium;
using the processing means to decode the coded data; and printing onto the print medium only after the coded data has been decoded.
639. A method according to claim 638, wherein the coded data is indicative of a plurality of locations associated with the print medium, the decoding step including determining at least one of the locations.
640. A method according to claim 639, wherein the decoding step includes determining a position of the print medium relative to the sensor at the time the coded data was sensed, based at least partly on the determined location.
641. A method according to claim 639, wherein the coded data takes the form of a two-dimensional array of data, the sensor being configured to capture an image of a subset of the coded data, the subset of the coded data being sufficient to enable the location to be determined.
642. A method according to claim 641, the processing means being configured to determine a position of the print medium relative to the sensor at the time the coded data was sensed, based at least partly on the determined location and a position of the captured coded data in a capture field of the sensor.
643. A method according to claim 642, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the sensor senses the coded data.
644. A method according to claim 638, including the steps, performed during printing onto the print medium, of:
using the sensor to determine a clock signal; and using the clock signal to synchronize the printing onto the print medium.
645. A method according to claim 650, wherein the step of using the sensor to sense the coded data includes capturing a first image of the coded data, and the step of generating the clock signal includes using the processor to perform the steps of;
determining a position of the print medium relative to the sensor at the time the coded data was sensed, based at least partly on the determined location;
using the sensor to capture subsequent images of the coded data as the printhead is being printed;
determining movement of the print medium during printing based on the subsequently captured images;
and deriving the clock signal based on the movement.
646. A method according to claim 645, wherein determining the movement during printing includes using the processing means to perform the steps of:
decoding the coded data captured in at least some of the subsequently captured images;
determining a position of the print medium relative to the sensor at the time each of the images was captured; and determining the movement of the print medium based on the positions determined over time.
647. A method according to claim 645, wherein determining the movement during printing includes the step of performing pattern recognition on at least some of the coded data in at least some of the captured images to determine movement of the print medium relative to initial position.
648. A method according to claim 638, further including the step of determining movement of the print medium relative to sensor, based on the coded data sensed by the sensor.
649. A method according to claim 648, wherein determining the movement includes capturing a plurality of images of the coded data as the print medium moves past the sensor, and determining the movement based on the plurality of images.
650. A method according to claim 649, wherein determining the movement includes the steps of using the processing means to decode the coded data captured in at least some of the plurality of captured images;
determining a position of the print medium relative to the sensor at the time each of the images was captured; and determining the movement of the print medium based on the positions determined over time.
651. A method according to claim 649, wherein determining the movement includes the step of performing pattern recognition to determine movement of the print medium relative to at least one absolute position of the print medium.
652. A method according to claim 651, including the step of obtaining the absolute position by using the processing means to decode the coded data in at least one of the captured images and obtaining the at least one absolute position from the decoded data.
653. A method according to claim 652, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the sensor senses the coded data.
654. A method according to claim 649, further including the steps of generating a clock signal based on the movement, and using the clock signal to synchronize the printing onto the print medium.
655. A method according to claim 638, wherein the medium includes at least one orientation indicator indicative of an orientation of the print medium, the method comprising determining the orientation from the orientation indicator before commencing printing.
656. A method according to claim 655, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
657. A method according to claim 656, the print medium having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through a media feed path, at least one of the at least one orientation indicators being disposed on or in the print medium at or adjacent the leading edge.
658. A method of using a mobile device to determine movement, relative to the mobile device, of a print medium configured to be printed on by the mobile device in a print direction, the mobile device including a printer, a first sensor and processing means, the print medium comprising a substrate defining first and second opposite faces, the first face bearing coded data, the method comprising the steps of using the first sensor to sense at least some of the coded data from the print medium;
determining movement of the print medium relative to sensor, based on the coded data sensed by the first sensor.
659. A method according to claim 658, wherein determining the movement includes capturing a plurality of images of the coded data as the print medium moves past the first sensor, and determining the movement based on the plurality of images.
660. A method according to claim 659, wherein determining the movement includes the steps of:
using the processing means to decode the coded data captured in at least one of the plurality of captured images;
determining a position of the print medium relative to the first sensor at the time each of the images was captured;
and determining the movement of the print medium based on the positions determined over time.
661. A method according to claim 659, wherein determining the movement includes the step of performing pattern recognition to determine movement of the print medium relative to at least one absolute position of the print medium.
662. A method according to claim 661, including the step of obtaining the absolute position by using the processing means to decode the coded data in at least one of the captured images and obtaining the at least one absolute position from the decoded data.
663. A method according to claim 662, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the first sensor senses the coded data.
664. A method according to claim 658, further including the steps of generating a clock signal based on the movement, and using the clock signal to synchronize the printing onto the print medium.
665. A method according to claim 658, wherein the coded data is indicative of a plurality of locations associated with the print medium, the decoding step including determining at least one of the locations.
666. A method according to claim 8, wherein the decoding step includes determining a position of the print medium relative to the first sensor at the time the coded data was sensed, based at least partly on the determined location.
667. A method according to claim 665, wherein the coded data takes the form of a two-dimensional array of data, the first sensor being configured to capture an image of a subset of the coded data, the subset of the coded data being sufficient to enable the position to be determined.
668. A method according to claim 667, the processing means being configured to determine a position of the print medium relative to the first sensor at the time the coded data was sensed, based at least partly on the determined location and a position of the captured coded data in a capture field of the first sensor.
669. A method according to claim 668, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the first sensor senses the coded data.
670. A method according to claim 658, including the steps, performed during printing onto the print medium, of:
using the first sensor to sense the coded data; and using the processing means to generate a clock signal based on the sensed coded data; and using the clock signal to synchronize the printing onto the print medium.
671. A method according to claim 670, wherein the step of using the first sensor to sense the coded data includes capturing a first image of the coded data, and the step of generating the clock signal includes using the processor to perform the steps of;
determining a position of the print medium relative to the first sensor at the time the coded data was sensed, based at least partly on the determined location;
using the first sensor to capture subsequent images of the coded data as the printhead is being printed;
determining movement of the print medium during printing based on the subsequently captured images; and deriving the clock signal based on the movement.
672. A method according to claim 671, wherein determining the movement during printing includes using the processing means to perform the steps of:
decoding the coded data captured in at least some of the subsequently captured images;
determining a position of the print medium relative to the first sensor at the time each of the images was captured; and determining the movement of the print medium based on the positions determined over time.
673. A method according to claim 671, wherein determining the movement during printing includes the step of performing pattern recognition on at least some of the coded data in at least some of the captured images to determine movement of the print medium relative to initial position.
674. A method according to claim 658, wherein the print medium includes at least one orientation indicator indicative of an orientation of the print medium, the method comprising determining the orientation from the orientation indicator before commencing printing.
675. A method according to claim 674, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
676. A method according to claim 658, further including the steps of using the processing means to determine, from a known physical orientation of the print medium and the first image, a first relative rotation of the coded data with respect to the print medium.
677. A method according to claim 658, further including the steps of:

using a second sensor to capture a second image of at least some of the coded data; and determining movement of the print medium relative to sensor, based on the coded data sensed by both the first and second sensors.
678. A method of using a mobile device to determine a first relative rotation of coded data on a print medium, the print medium configured to be printed on by the mobile device in a print direction, the mobile device including a printer, a first sensor and processing means, the print medium comprising a substrate defining first and second opposite faces, the first face bearing coded data, the method comprising the steps of:
(a) using the first sensor to capture a first image of at least some of the coded data when the print medium is at a first position;
(b) using the processing means to determine, from a known physical orientation of the print medium and the first image, a first relative rotation of the coded data with respect to the print medium.
679. A method according to claim 678, wherein the mobile device further includes a transmitter, the method further including the step of transmitting, using the transmitter, the first relative rotation to a remote computer system.
680. A method according to claim 679, wherein the transmitter is configured to transmit the relative rotation via a mobile telecommunications network.
681. A method according to claim 678, further including the steps of:
using the first sensor to capture a second image of at least some of the coded data when the print medium is at a second position;
using the processing means to determine, from a known physical orientation of the print medium and the second image, a second relative rotation of the coded data with respect to the print medium; and using the processing means to calculate, from the first and second rotations, a third rotation, the third rotation being a more accurate indication of the relative rotation of the coded data with respect to the print medium than the first or second rotations.
682. A method according to claim 681, wherein the mobile device further includes a transmitter, the method further including the step of transmitting, using the transmitter, the third relative rotation to a remote computer system.
683. A method according to claim 678, further including the steps, performed by the processing means, of:
decoding at least some of the coded data in the first image;
determining a location from the decoded data; and determining, based on the location and a position of the coded data within the first image, a first position of the print medium relative to the first sensor at time the first image was captured.
684. A method according to claim 678, wherein determining the movement includes capturing a plurality of images of the coded data as the print medium moves past the first sensor, and determining the movement based on the plurality of images.
685. A method according to claim 678, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the first sensor senses the coded data.
686. A method according to claim 684, further including the steps of generating a clock signal based on the movement, and using the clock signal to synchronize the printing onto the print medium.
687. A method according to claim 678, wherein the coded data takes the form of a two-dimensional array of data, the first sensor being configured to capture an image of a subset of the coded data, the subset of the coded data being sufficient to enable the position to be determined.
688. A method according to claim 678, including the steps, performed during printing onto the print medium, of:
using the first sensor to sense the coded data; and using the processing means to generate a clock signal based on the sensed coded data; and using the clock signal to synchronize the printing onto the print medium.
689. A method according to claim 688, wherein the step of using the first sensor to sense the coded data includes capturing a first image of the coded data, and the step of generating the clock signal includes using the processor to perform the steps of;
determining a position of the print medium relative to the first sensor at the time the coded data was sensed, based at least partly on the determined location;
using the first sensor to capture subsequent images of the coded data as the printhead is being printed;
determining movement of the print medium during printing based on the subsequently captured images;
and deriving the clock signal based on the movement.
690. A method according to claim 689, wherein determining the movement during printing includes using the processing means to perform the steps of:
decoding the coded data captured in at least some of the subsequently captured images;
determining a position of the print medium relative to the first sensor at the time each of the images was captured; and determining the movement of the print medium based on the positions determined over time.
691. A method according to claim 689, wherein determining the movement during printing includes the step of performing pattern recognition on at least some of the coded data in at least some of the captured images to determine movement of the print medium relative to initial position.
692. A method according to claim 678, wherein the print medium includes at least one orientation indicator indicative of an orientation of the print medium, the method comprising determining the orientation from the orientation indicator before commencing printing.
693. A method according to claim 692, wherein the at least one orientation indicator is disposed at or adjacent an edge of the print medium.
694. A method according to claim 693, the print medium having a leading edge and a trailing edge defined relative to intended feed direction of the print medium through a media feed path, at least one of the at least one orientation indicators being disposed on or in the print medium at or adjacent the leading edge.
695. A method according to claim 678, further including the steps of:
using a second sensor to capture a second image of at least some of the coded data;
using the processing means to determine, from a known physical orientation of the print medium and the second image, a second relative rotation of the coded data with respect to the print medium; and using the processing means to calculate, from the first and second rotations, a third rotation, the third rotation being a more accurate indication of the relative rotation of the coded data with respect to the print medium than the first or second rotations.
696. A method according to claim 695, including capturing the first and second images substantially simultaneously.
697. A method of using a mobile device to determine a position of a print medium, the print medium configured to be printed on by the mobile device in a print direction, the mobile device including a printer, a first sensor and processing means, the print medium comprising a substrate defining first and second opposite faces, the first face bearing coded data indicative of at least one location, the method comprising the steps of:
(a) using the first sensor to capture a first image of at least some of the coded data when the print medium is at a position within a media feed path within the mobile device;
(b) using the processing means to decode at least some of the sensed coded data, thereby to determine at least one location; and (c) determining the position of the print medium based on the at least one location determined in step (b).
698. A method according to claim 697, wherein step (c) wherein the position is determined based at least partly on the determined location and a position of the captured coded data in a capture field of the first sensor.
699. A method according to claim 697, further including the steps of:
using the first sensor to capture a plurality of the images over time;
using the processing means to decode a plurality of the captured images, thereby to determine a plurality of the locations; and determining a series of positions of the print medium based on the locations.
700. A method according to claim 697, wherein the mobile device comprises a second sensor, the method comprising the steps of:
(d) using the second sensor to capture a second image of at least some of the coded data;
(e) using the processing means to decode at least some of the sensed coded data, thereby to determine at least one location; and (f) determining a position of the print medium based on the location determined in step (e).
701. A method according to claim 698, including capturing the first and second images substantially simultaneously.
702. A method according to claim 699, further including using the processing means to determine a position of the print medium based on the positions determined in steps (c) and (f).
703. A method according to claim 702, including averaging the positions determined in steps (c) and (f).
704. A method according to claim 697, further including the step of using the processing means to determine, from the sensed coded data, an identity of the print medium.
705. A method according to claim 697, further including determining movement of the print medium relative to sensor, based on the coded data sensed by the first sensor.
706. A method according to claim 697, wherein determining the movement includes capturing a plurality of images of the coded data as the print medium moves past the first sensor, and determining the movement based on the plurality of images.
707. A method according to claim 706, wherein determining the movement includes the steps of:
using the processing means to decode the coded data captured in at least one of the plurality of captured images;
determining a position of the print medium relative to the first sensor at the time each of the images was captured;
and determining the movement of the print medium based on the positions determined over time.
708. A method according to claim 706, wherein determining the movement includes the step of performing pattern recognition to determine movement of the print medium relative to at least one absolute position of the print medium.
709. A method according to claim 697, comprising the step of using the processing means to determine, from a known physical orientation of the print medium and the first image, a first relative rotation of the coded data with respect to the print medium.
710. A method according to claim 697, wherein the mobile device further includes a transmitter, the method further including the step of transmitting, using the transmitter, the first relative rotation to a remote computer system.
711. A method according to claim 698, wherein the transmitter is configured to transmit the relative rotation via a mobile telecommunications network.
712. A method according to claim 697, including the steps, performed during printing onto the print medium, of:
using the processing means to generate a clock signal based on the sensed coded data; and using the clock signal to synchronize the printing onto the print medium.
713. A method according to claim 697, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the first sensor senses the coded data.
714. A mobile telecommunications device comprising:
a printhead for printing a sheet of media substrate, the sheet of media substrate having coded data on at least part of its surface;
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a sensor for reading the coded data and generating a signal indicative of at least one dimension of the sheet, and transmitting the signal to the print engine controller; such that, the print engine controller uses the signal to initiate the printing when the sheet is at a predetermined position relative to the printhead.
715. A mobile telecommunications device according to claim 714 wherein the at least one dimension is the distance from at least one marker in the coded data to the leading edge of the sheet with respect to the direction of media feed past the printhead.
716. A mobile telecommunications device according to claim 714 wherein during use, the media feed assembly feeds the sheet along the feed path in a forward direction so that the sensor can read at least some of the coded data before retracting the sheet along the path in a reverse direction and then again feeding the sheet along the path in the forward direction past the printhead for printing.
717. A mobile telecommunications device according to claim 714 wherein the coded data is disposed along a track extending along the sheet in a direction parallel to the feed path.
718. A mobile telecommunications device according to claim 714 wherein the coded data is distributed across substantially all of at least one side of the sheet.
719. A mobile telecommunications device according to claim 714 wherein the coded data is disposed along a track extending across the sheet in a direction normal to the feed path.
720. A mobile telecommunications device according to claim 714 wherein the printhead and the drive shaft are incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
721. A mobile telecommunications device according to claim 714 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
722. A mobile telecommunications device according to claim 714 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (b) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
723. A mobile telecommunications device according to claim 714 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (b) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
724. A mobile telecommunications device according to claim 714 wherein the media feed assembly has a drive shaft with a media engagement surface for enhanced contact friction with the media substrate.
725. A mobile telecommunications device according to claim 714 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
726. A mobile telecommunications device according to claim 714 wherein the print engine controller has a light emitting beacon, and the printhead comprises:
an array of nozzles for ejecting ink;

print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
727. A mobile telecommunications device according to claim 714 wherein the media feed assembly has a drive shaft driven by a piezo-electric resonant linear drive system.
728. A mobile telecommunications device according to claim 714 further comprising:
a position sensor for providing the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
729. A mobile telecommunications device according to claim 714 further wherein during use, the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
730. A mobile telecommunications device according to claim 714 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
731. A mobile telecommunications device according to claim 714 further comprising:
a dual sensing facility for reading coded data on at least part of the media substrate before, as well as after, it has past the printhead.
732. A mobile telecommunications device according to claim 714 wherein the media feed assembly has a drive shaft for feeding the sheet of media substrate past the printhead; wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
733. A mobile telecommunications device comprising:
a printhead for printing a sheet of media substrate, the sheet of media substrate having coded data on at least part of its surface;
a media feed assembly for feeding the sheet of media substrate along a feed path past the printhead;
a print engine controller for operatively controlling the printhead; and, a dual sensor facility for reading the coded data before, as well as after, it has past the printhead.
734. A mobile telecommunications device according to claim 733 wherein the sensor facility has a first photosensor positioned adjacent the feed path before the printhead, and a second photosensor positioned adjacent the feed path after the printhead.
735. A mobile telecommunications device according to claim 734 wherein the coded data includes clock data configured in a longitudinal clock track extending along the sheet of media substrate such that, the first photosensor reads the clock track before the second photosensor.
736. A mobile telecommunications device according to claim 735 wherein the first and second photosensors both generate a clock signal when they are simultaneously reading the clock track and the print engine controller synchronizes the clock signal from the second photosensor with the signal from the first phototsensor.
737. A mobile telecommunications device according to claim 736 wherein the print engine controller has a phase lock loop for the first and second photosensor signals respectively in order to generate first and second phase locked clock signals, the print engine controller also having a phase difference calculator to determine any phase difference between the first and second phase locked clock signals, and a delay to delay the second phase locked clock signal by an amount that synchronizes it with the first phase locked signal.
738. A mobile telecommunications device according to claim 737 wherein the print engine controller generates a line sync signal for the printhead using the first phase locked clock signal prior to synchronization with the second phase locked clock signal, and then uses the second phase locked clock signal to generate the line sync signal after synchronization.
739. A mobile telecommunications device according to claim 733 wherein the printhead and the drive shaft are incorporated into a replaceable cartridge for insertion into a print media feed path within the mobile telecommunications device.
740. A mobile telecommunications device according to claim 733 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
741. A mobile telecommunications device according to claim 733 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (b) a force transfer mechanism connected to the capper and configured such that a force provided by an edge of the media substrate as it moves relative to the feed path is transferred to the capper by the force transfer mechanism, thereby to at least commence movement of the capper from the capped position to the uncapped position prior to the media substrate reaching the capper.
742. A mobile telecommunications device according to claim 733 further comprising:
(a) a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein in the uncapped position the capper is displaced away from the printhead; and, (b) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media substrate is clear of the printhead.
743. A mobile telecommunications device according to claim 733 wherein the media feed assembly has a drive shaft with a media engagement surface for enhanced contact friction with the media substrate.
744. A mobile telecommunications device according to claim 733 further comprising a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the printhead is able to print onto the media substrate, wherein the capper assembly is held in the uncapped position by the media substrate such that it moves to the capped position upon disengagement with the media.
745. A mobile telecommunications device according to claim 733 further comprising a print engine controller with a light emitting beacon, and the printhead further comprises:
an array of nozzles for ejecting ink;
print data circuitry for providing the nozzles with print data; and, a photosensor for optically receiving the print data from the beacon.
746. A mobile telecommunications device according to claim 733 wherein the media feed assembly has a drive shaft driven by a piezo-electric resonant linear drive system.
747. A mobile telecommunications device according to claim 733 wherein the dual sensing facility provides the print engine controller with a signal indicative of the position of the media substrate relative to the printhead; such that, the print engine controller differentiates the signal to derive the speed of the media substrate relative to the printhead and adjusts the operation of the printhead in response to variations in the speed.
748. A mobile telecommunications device according to claim 733 wherein the media feed assembly has a drive shaft and the print engine controller senses the number of complete and partial rotations of the drive shaft and adjusts the operation of the printhead in response to variations in the angular velocity of the drive shaft.
749. A mobile telecommunications device according to claim 733 further comprising at least one ink reservoir, the at least one reservoir comprising:
a housing defining an ink storage volume;
one or more baffles dividing the ink storage volume into sections, each of the sections having at least one ink outlet for sealed connection to the printhead; and, at least one conduit establishing fluid communication between the ink outlets of adjacent sections.
750. A mobile telecommunications device according to claim 733 wherein the coded data includes data indicative of at least one dimension of the sheet of media substrate; such that, the print engine controller initiates the printing when the sheet is at a predetermined position relative to the printhead.
751. A mobile telecommunications device according to claim 733 wherein the media feed assembly has a drive shaft for feeding the sheet of media substrate past the printhead; wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
752. A replaceable print cartridge for installation in a mobile device, the print cartridge comprising:
a printhead;
at least one ink reservoir; and a first integrated circuit that permanently stores an identifier that is relatively unique to that integrated circuit;
such that, upon installation in the mobile device, the mobile device is able to determine the identifier.
753. A print cartridge according to claim 752, further including one or more contacts for operative connection with one or more corresponding complementary contacts in the mobile device upon installation, the mobile device being able to interrogate the first integrated circuit via the at least one contact.
754. A print cartridge according to claim 752, wherein the mobile device includes a second integrated circuit for interrogating the first integrated circuit to determine the identifier, the first integrated circuit being configured to enable authenticated communication between itself and the second integrated circuit.
755. A print cartridge according to claim 754, wherein the first integrated circuit includes non-volatile memory that stores a first bit-pattern, the first bit pattern having been generated by:
(a) applying a one way function to a second bit-pattern associated with the device, thereby to generate a first result;
(b) applying a second function to the first result and the first bit-pattern, thereby to generate a second result; and (c) storing the second result in the memory, thereby indirectly storing the first bit-pattern.
756. A print cartridge according to claim 755, wherein the one way function is more cryptographically secure than the second function.
757. A plurality of print cartridges according to claim 752, wherein each of the first integrated circuits includes secret information used in authentication by the mobile device of the cartridge associated with that integrated circuit, the secret information in each chip being located in a different location in the memory relative to a plurality of the other chips.
758. A print cartridge according to claim 752, wherein the printhead is a pagewidth printhead.
759. A print cartridge according to claim 752, wherein the printhead prints in at least three colors.
760. A print cartridge according to claim 759, wherein the printhead prints in cyan, magenta and yellow.
761. A print cartridge according to claim 752, further comprising a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the feed path.
762. A print cartridge according to claim 761, wherein in the capped position the capper is resiliently urged into the capping relationship.
763. A print cartridge according to claim 762, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
764. A print cartridge according to claim 763, wherein the capping mechanism is further configured such that the capper is simultaneously displaced in a direction away from the printhead as it is displaced in the feed direction.
765. A print cartridge according to claim 764, wherein the capping mechanism is subsequently displaced in a direction opposite the feed direction in the uncapped position.
766. A print cartridge according to claim 765, further including a locking mechanism for holding the capper in the uncapped position whilst the print medium is being printed on by the printhead.
767. A print cartridge according to claim 766, wherein the locking mechanism includes at least one cam mounted for rotation between an unlocked position and a locked position, the at least one cam being configured such that, in the unlocked position, it extends at least partially into the feed path when print medium is not present, the at least one cam being positioned and configured to engage an edge of the print medium as the print medium is fed through the feed path such that the at least one cam is rotated by the print medium into the locked position, such that, in the locked position, the capper is held in the uncapped position until after a trailing edge of the print medium is clear of the printhead.
768. A print cartridge according to claim 768, wherein the cam is resiliently biased to return to the unlocked position once the print medium edge moves past a predetermined position in the feed path, thereby causing the capper to return to the capped position.
769. A print cartridge according to claim 767, wherein the at least one cam is mounted for rotation about an axis that is substantially normal to the print medium as it engages the cam in the feed path.
770. A print cartridge according to claim 752, further comprising:
at least one baffle dividing the at least one ink reservoir into a plurality of sections, each of the sections in each ink reservoir being in fluid communication with each of the other sections in that ink reservoir via an aperture;
and at least one porous insert in each of the at least one reservoirs, such that substantially all of each ink reservoir is filled with the at least one porous insert.
771. A print cartridge according to claim 752, wherein each reservoir includes a single porous insert including at least one recessed portion, each recessed portion being configured to engage one of the baffles in the reservoir.
772. A replaceable cartridge for installation in a mobile device, the cartridge comprising:
a printhead;
one or more ink reservoirs for supplying ink to the printhead; and an integrated circuit for enabling validation of the cartridge upon installation of the cartridge into the mobile device, the integrated circuit including non-volatile memory for storing secret information.
773. A cartridge according to claim 772, further including communication means for enabling communication between the mobile device and the integrated circuit during validation.
774. A cartridge according to claim 773, wherein the communication means includes first contacts for engaging complementary second contacts of the mobile device when the cartridge is installed therein.
775. A cartridge according to claim 772, wherein the integrated circuit is configured to communicate with an entity in the mobile device in a secure fashion.
776. A cartridge according to claim 772, wherein the integrated circuit is configured to store data indicative of a number of prints remaining, the integrated circuit including one or more security features for preventing unauthorised tampering with the data.
777. A cartridge according to claim 772, wherein the data includes an ink counter, the integrated circuit being configured to decrement the ink counter as ink is used in printing.
778. A cartridge according to claim 777, wherein the integrated circuit is designed to prevent incrementing of the ink counter.
779. A cartridge according to claim 772, wherein the data includes a print counter, the integrated circuit being configured to decrement the print counter each time a print is made.
780. A cartridge according to claim 777, wherein the integrated circuit is designed to prevent incrementing of the print counter.
781. A cartridge according to claim 772, further including a sensor, the sensor being configured to sense coded data on a print medium to be printed on by the printhead.
782. A cartridge according to claim 781, wherein the sensor is configured to output the sensed coded data to the mobile device.
783. A cartridge according to claim 781, configured to use a clock derived from the sensed coded data to synchronize printing onto the print medium.
784. A cartridge according to claim 783, wherein the coded data includes a linear-encoded clock track, the clock being derived from the clock track during printing.
785. A cartridge according to claim 782, wherein the coded data includes a linear-encoded data track, the data track being indicative of an identity of the print medium, the cartridge being configured to output the sensed coded data to the mobile device to enable determination of the identity.
786. A cartridge according to claim 772, further including a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the feed path.
787. A cartridge according to claim 786, wherein in the capped position the capper is resiliently urged into the capping relationship.
788. A cartridge according to claim 787, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
789. A cartridge according to claim 788, wherein the capping mechanism is further configured such that the capper is simultaneously displaced in a direction away from the printhead as it is displaced in the feed direction.
790. A cartridge according to claim 789, wherein the capping mechanism is subsequently displaced in a direction opposite the feed direction in the uncapped position.
791. A cartridge according to claim 790, further including a locking mechanism for holding the capper in the uncapped position whilst the print medium is being printed on by the printhead.
792. A replaceable print cartridge for installation in a mobile device, the print cartridge comprising:
a printhead;
at least one ink reservoir;
storage means configured to store data; and a data changing mechanism for changing a value of the data, the data being prevented from being changed to a value that the storage means has previously stored.
793. A print cartridge according to claim 792, wherein the storage means stores the data in the form of a plurality of units, the value of the data being changeable by permanently altering one or more of the units.
794. A print cartridge according to claim 793, wherein the units are bits.
795. A print cartridge according to claim 794, wherein the value of each of the bits is stored in a one-time alterable form, the print cartridge being configured to selectively alter the value of one or more of the bits in response to a predetermined event.
796. A print cartridge according to claim 795, including a plurality of fusible links, each of the fusible links storing one of the bits, each fusible link being configured to selectively be blown in response to the event.
797. A print cartridge according to claim 795, wherein the printhead includes a plurality of unit cells, each of the unit cells being provided with data from a corresponding data register, wherein a majority of the unit cells are associated with a corresponding plurality of respective print nozzles for outputting ink, and a minority of the unit cells are associated with a corresponding plurality of the bits, such that the value of one or more of the bits can be altered by loading appropriate data into the register.
798. A print cartridge according to claim 796, further including one or more contacts for operative connection with one or more corresponding complementary contacts in the mobile device upon installation, the mobile device being able to control alteration of the value of one or more of the bits via the at least one contact.
799. A print cartridge according to claim according to claim 792, wherein the data is indicative of a number of prints remaining.
800. A print cartridge according to claim 792, wherein the data is indicative of an amount of ink used by, or remaining in, the print cartridge.
801. A print cartridge according to claim 792, wherein the data is indicative of a number of prints made, or remaining to be printed, by the print cartridge.
802. A print cartridge according to claim 792, further including a sensor, the sensor being configured to sense coded data on a print medium to be printed on by the printhead.
803. A print cartridge according to claim 802, wherein the sensor is configured to output the sensed coded data to the mobile device.
804. A print cartridge according to claim 802, configured to use a clock-derived from the sensed coded data to synchronize printing onto the print medium.
805. A print cartridge according to claim 804, wherein the coded data includes a linear-encoded clock track, the clock being derived from the clock track during printing.
806. A print cartridge according to claim 803, wherein the coded data includes a linear-encoded data track, the data track being indicative of an identity of the print medium, the cartridge being configured to output the sensed coded data to the mobile device to enable determination of the identity.
807. A print cartridge according to claim 792, further including a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the feed path.
808. A print cartridge according to claim 807, wherein in the capped position the capper is resiliently urged into the capping relationship.
809. A print cartridge according to claim 808, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
810. A print cartridge according to claim 809, wherein the capping mechanism is further configured such that the capper is simultaneously displaced in a direction away from the printhead as it is displaced in the feed direction.
811. A print cartridge according to claim 810, further including a locking mechanism for holding the capper in the uncapped position whilst the print medium is being printed on by the printhead.
812. A replaceable print cartridge for installation in a mobile device, the print cartridge comprising:
a printhead;
at least one ink reservoir;
storage means configured to store information indicative of an amount of printing that can be achieved by the cartridge based on the amount of ink in the at least one ink reservoir;
and an information changing mechanism for changing a value of the information.
813. A print cartridge according to claim 812, wherein the information is indicative of a volume of ink remaining in the at least one ink reservoir.
814. A print cartridge according to claim 813, including a plurality of the ink cartridges, the information being indicative of an amount of ink remaining in each of the reservoirs individually.
815. A print cartridge according to claim 813, including a plurality of the ink cartridges, the information being indicative of an average amount of ink remaining in the reservoirs in aggregate.
816. A print cartridge according to claim 812, wherein the information is indicative of an estimated number of typical prints the print cartridge can achieve based on the amount of ink in the at least one ink reservoir.
817. A print cartridge according to claim 812, wherein the storage means stores the information in the form of a plurality of sub-value units, the value of the information being changeable by permanently altering the one or more of the sub-value units.
818. A print cartridge according to claim 817, wherein the sub-value units are bits.
819. A print cartridge according to claim 818, configured to automatically change a value of one of the bits each time a predetermined amount of ink is consumed by printing.
820. A print cartridge according to claim 818, configured to automatically change a value of one of the bits each time a predetermined number of prints has been printed.
821. A print cartridge according to claim 818, wherein the value of each of the bits is stored in a one-time alterable form, the print cartridge being configured to selectively alter the value of one or more of the bits in response to a predetermined event.
822. A print cartridge according to claim 821, including a plurality of fusible links, each of the fusible links storing one of the bits, each fusible link being configured to selectively be blown by the cartridge in response to the event.
823. A print cartridge according to claim 821, wherein the printhead includes a plurality of unit cells, each of the unit cells being provided with data from a corresponding data register, wherein a majority of the unit cells are associated with a corresponding plurality of respective print nozzles for outputting ink, and a minority of the unit cells are associated with a corresponding plurality of the bits, such that the value of one or more of the bits can be altered by loading appropriate data into the register.
824. A print cartridge according to claim 818, further including one or more contacts for operative connection with one or more corresponding complementary contacts in the mobile device upon installation, the mobile device being able to control alteration of the value of one or more of the bits via the at least one contact.
825. A print cartridge according to claim 812, further including a sensor, the sensor being configured to sense coded data on a print medium to be printed on by the printhead.
826. A print cartridge according to claim 825, wherein the sensor is configured to output the sensed coded data to the mobile device.
827. A print cartridge according to claim 825, configured to use a clock derived from the sensed coded data to synchronize printing onto the print medium.
828. A print cartridge according to claim 827, wherein the coded data includes a linear-encoded clock track, the clock being derived from the clock track during printing.
829. A print cartridge according to claim 826, wherein the coded data includes a linear-encoded data track, the data track being indicative of an identity of the print medium, the cartridge being configured to output the sensed coded data to the mobile device to enable determination of the identity.
830. A print cartridge according to claim 812, further including a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the feed path.
831. A print cartridge according to claim 830, wherein in the capped position the capper is resiliently urged into the capping relationship.
832. A mobile device including:
a printhead disposed in a print path along which a print medium travels while being printed; and a sensor in the print path to sense when a print medium has been inserted therein;
the mobile device being configured to:
sense, using the sensor, that a print medium has been inserted;
without further user intervention, commence printing onto the print medium.
833. A mobile device according to claim 832, wherein the mobile device includes a display for displaying visible information to a user, the mobile device being configured to automatically print data associated with a current document or other type of information being displayed on the display.
834. A mobile device according to claim 833, wherein the mobile device is configured to automatically print the next job in a print queue maintained by mobile device.
835. A mobile device according to claim 832, wherein printing without user intervention is associated with a mode in which a user can place the mobile device.
836. A mobile device according to claim 832, further including drive means for driving the print medium past the printhead during printing, the drive means being configured to commence driving the print medium as part of the printing process.
837. A mobile device according to claim 836, wherein the drive means includes at least one roller positioned in the print path before the printhead.
838. A mobile device according to claim 832, wherein the sensor is configured to read coded data on the print medium.
839. A mobile device according to claim 838, wherein the mobile device includes a transmitter and a receiver, the transmitter being configured to transmit a message to a remote computer based on the read coded data, the receiver being configured to receive a reply from the remote computer indicative of whether the print medium can be printed on.
840. A mobile device according to claim 839, further including drive means, the drive means being configured to:
drive the print medium along the print path while the sensor reads the coded data;
drive the print medium backwards along the print path into a printing commencement position; and drive the print medium along the print path while the printer prints onto the print medium.
841. A mobile device according to claim 840, wherein the sensor senses the coded data as the print medium is being printed, the mobile device being configured to extract a clock signal from the coded data and to use the clock signal to synchronize printing onto the print medium.
842. A mobile device according to claim 832, wherein the sensor senses at least some of the coded data upon initial insertion of the print medium, the mobile device being configured to determine from the sensed coded data an orientation of the print medium and prevent printing in the event the print medium is not inserted correctly.
843. A mobile device according to claim 842, wherein the mobile device is configured to output an indication to a user in the event the print medium is inserted incorrectly.
844. A mobile device according to claim 832, the print medium including a linear-encoded data track extending in an intended direction of printing, the mobile device including:

a sensor configured to sense the data track during printing;
a printhead for printing onto the print medium in response to a fire control signal; and fire control means connected to generate the fire control signal based on the sensed data track.
845. A mobile device according to claim 844, further including a light-emitting device for illuminating the data track while the sensor is sensing it during printing.
846. A mobile device according to claim 845, wherein the data track is printed with infrared ink, the light-emitting device emits light in the infrared spectrum and the photosensor is sensitive in the infrared spectrum.
847. A mobile device according to claim 844, wherein the data track is a clock track containing only a clock code, the fire control means being configured to generate the fire control signal in the form of a clock signal generated from the sensed data track.
848. A mobile device according to claim 844, wherein the data track includes first information, the first information including an embedded clock signal, the fire control means being configured to generate the fire control signal in the form of a clock signal extracted from the sensed data track.
849. A mobile device according to claim 848, wherein the first information is indicative of at least one physical characteristic of the print medium, the mobile device being configured to control operation of the printhead at least partially on the basis of at least one of the physical characteristics.
850. A mobile device according to claim 844, configured to use the sensed data track to determine an absolute position of the print medium with respect to the printhead, and to print onto the print medium in reliance on the determination.
851. A mobile device according to claim 850, the data track further encoding first information and the print medium further including second coded data that encodes second information, the first information being indicative of the second information.
852. A method of using a mobile device to authenticate a print medium before completing printing onto the print medium, the mobile device including processing means, a printhead and a sensor, the print medium comprising a substrate, the method comprising the steps of:
using the sensor to sense coded data provided on a surface of the substrate;
using the processing means to interpret the coded data to authenticate the print medium; and in the event the authentication step is successful, using the printhead to print onto the print medium.
853. A method according to claim 852 wherein the step of using the processor means to interpret the coded data further comprises:
determining, from the sensed coded data:
an identity of the print medium;
a plurality of signature fragments, the signature being a digital signature of at least part of the identity;
determining, using the plurality of signature fragments, a determined signature;
generating, using the determined signature and a key, a generated identity;
comparing the identity to the generated identity; and authenticating the print medium using the results of the comparison.
854. A method according to claim 852, wherein the coded data includes a plurality of coded data portions, each coded data portion encoding:
the identity; and, at least a signature fragment;
wherein the method includes sensing a plurality of coded data portions to thereby determine the plurality of signature fragments.
855. A method according to claim 854 wherein the plurality of coded data portions are sensed as the print medium moves past the sensor whilst moving along a print path defined in the mobile device.
856. A method according to claim 855, wherein each coded data portion encodes a signature fragment identity, and wherein the method includes:
determining the signature fragment identity of each determined signature fragment; and determining, using the determined signature fragment identities, the determined signature.
857. A method according to claim 853, wherein the coded data includes a plurality of layouts, each layout defining the position of a plurality of first symbols encoding the identity, and a plurality of second symbols defining at least one signature fragment.
858. A method according to claim 856, wherein the coded data includes a plurality of tags, each coded data portion being formed from at least one of the tags.
859. A method according to claim 852, wherein the coded data is printed on the surface using at least one of an invisible ink and an infrared-absorptive ink, and wherein the method includes, sensing the coded data using an infrared sensor.
860. A method according to claim 853, wherein the plurality of signature fragments are indicative of the entire signature.
861. A method according to claim 853, wherein the mobile device includes a transmitter and a receiver, the method comprising the steps of:
using the transmitter to send a first message to a remote computer system, the first message being indicative of the identity;
using the receiver to receive a second message from the remote computer system, the second message including data indicative of at least one of padding associated with the signature;
a private key; and a public key; and generating, using the determined signature and the data, private key or public key, the generated identity.
862. A method according to claim 853, wherein the signature is a digital signature of at least part of the identity and at least part of predetermined padding, and wherein the method includes:
determining, using the identity, the predetermined padding;
and, generating, using the predetermined padding and the determined signature, the generated identity.
863. A method according to claim 854, wherein the sensed coded data is further indicative of at least one of a location of at least one of the data portions;
a position of at least one of the data portions on the print medium;
a size of the data portions;
a size of the signature;
a size of the signature fragment;
an identity of a signature fragment;
units of indicated locations;
redundant data;
data allowing error correction;
Reed-Solomon data; and Cyclic Redundancy Check (CRC) data.
864. A method according to claim 853, wherein the digital signature includes at least one of:

a random number associated with the identity;
a keyed hash of at least the identity;
a keyed hash of at least the identity produced using a private key, and verifiable using a corresponding public key;
cipher-text produced by encrypting at least the identity;
cipher-text produced by encrypting at least the identity and a random number; and, cipher-text produced using a private key, and verifiable using a corresponding public key.
865. A method according to claim 852, wherein the identity includes an identity of at least one of:
the print medium; and a region of the print medium.
866. A method according to claim 852, wherein the coded data includes a number of coded data portions, each coded data portion encoding:
an identity; and at least part of a signature, the signature being a digital signature of at least part of the identity.
867. A method according to claim 852, further including the step of commencing printing prior to determining whether the authentication step is successful, and halting printing in the event authentication is not successful.
868. A method of using a mobile device to authenticate a print medium before completing printing onto the print medium, the mobile device including processing means, a printhead, a transmitter, a receiver and a sensor, the print medium comprising a substrate, the method comprising the steps of:
using the sensor to sense coded data provided on a surface of the substrate;
using the processing means to determine from the sensed coded data, an identity of the print medium;
using the transmitter to send a first message to a remote computer system, the first message being indicative of the identity;
using the receiver to receive a second message from the remote computer system, the second message being including data indicative of whether the identity is associated with a print medium that can be printed upon; and using the printhead to print onto the print medium in reliance on the data.
869. A method according to claim 868, wherein the print medium includes an orientation indicator, the method including the steps of:
sensing the orientation indicator prior to sensing the coded data; and preventing printing in the event the medium is inserted incorrectly.
870. A method according to claim 868, including the step, in the event the medium is inserted incorrectly, of providing an indication to a user of the mobile device that the orientation of the medium needs to changed.
871. A method according to claim 852, wherein the substrate is a laminar substrate.
872. A method of using a mobile device to authenticate a print medium online before completing printing onto the print medium, the mobile device including processing means, a printhead, a sensor, a transmitter and a receiver, the print medium comprising a laminar substrate, the method comprising the steps of using the sensor to sense coded data provided on a surface of the substrate;
using the processing means to determine, from the sensed coded data:
an identity of the print medium; and at least part of a signature, the signature being a digital signature of at least part of the identity;
using the transmitter to send first data to a remote computer system, the first data being indicative of the identity and the at least part of the signature;
using the receiver to receive second data from the remote computer system in reply to the first data, the second data being indicative of whether the print medium is authentic based on the identity and the at least part of the signature; and in the event the print medium is authentic, using the printhead to print onto the print medium.
873. A method according to claim 872, wherein the coded data includes a plurality of coded data portions, each coded data portion encoding:
the identity; and, at least a signature fragment;
wherein the method includes sensing a plurality of coded data portions to thereby determine a plurality of signature fragments representing the at least part of the signature.
874. A method according to claim 873, wherein the plurality of coded data portions are sensed as the print medium moves past the sensor whilst moving along a print path defined in the mobile device.
875. A method according to claim 874, wherein each coded data portion encodes a signature fragment identity, and wherein the method includes:

determining the signature fragment identity of each determined signature fragment; and determining, using the determined signature fragment identities and the corresponding signature fragments, the at least part of the signature.
876. A method according to claim 873, wherein the plurality of signature fragments are indicative of the entire signature.
877. A method according to claim 873, wherein the coded data includes a plurality of tags, each coded data portion being formed from at least one of the tags.
878. A method according to claim 872, wherein the second data is further indicative of at least one of:
padding associated with the signature;
a private key; and a public key.
879. A method according to claim 873, wherein the sensed coded data is further indicative of at least one of:
a location of at least one of the data portions;
a position of at least one of the data portions on the print medium;
a size of at least one of the data portions;
a size of the signature;
a size of the signature fragment;
an identity of the signature fragment;
units of indicated locations;
redundant data;
data allowing error correction;
Reed-Solomon data; and Cyclic Redundancy Check (CRC) data.
880. A method according to claim 872, wherein the digital signature includes at least one of:
a random number associated with the identity;
a keyed hash of at least the identity;
a keyed hash of at least the identity produced using a private key, and verifiable using a corresponding public key;
cipher-text produced by encrypting at least the identity;
cipher-text produced by encrypting at least the identity and a random number;
and, cipher-text produced using a private key, and verifiable using a corresponding public key.
881. A method according to claim 872, wherein the identity includes an identity of at least one of:
the print medium; and a region of the print medium.
882. A method according to claim 872, wherein the coded data includes a number of coded data portions, each coded data portion encoding:
the identity; and, at least part of a signature, the signature being a digital signature of at least part of the identity.
883. A method according to claim 872, further including the step of commencing printing prior to determining whether the authentication step is successful, and halting printing in the event authentication is not successful.
884. A method according to claim 872, wherein the print medium includes an orientation indicator, the method including the steps of:
sensing the orientation indicator prior to sensing the coded data; and preventing printing in the event the medium is inserted incorrectly.
885. A method according to claim 888, including the step, in the event the medium is inserted incorrectly, of providing an indication to a user of the mobile device that the orientation of the medium needs to changed.
886. A method according to claim 872, wherein the coded data is printed on the surface using at least one of an invisible ink and an infrared-absorptive ink, and wherein the method includes, sensing the coded data using an infrared sensor.
887. A method according to claim 872, wherein the print medium includes at least one longitudinally extending data track, the method comprising deriving a clock signal from the data track as the print medium is being printed and using the clock signal to synchronize the printing onto the print medium.
888. A method according to claim 887, wherein the data track further includes first information, the first information being indicative of the identity.
889. A method according to claim 887, wherein the data track is linear encoded.
890. A method according to claim 887, wherein the clock signal is embedded in data encoded in the data track, the method including extracting the clock signal from the data track.
891. A method according to claim 872, wherein the coded data is printed on the surface using at least one of an invisible ink and an infrared-absorptive ink, and wherein the method includes, sensing the coded data using an infrared sensor.
892. A method of using a mobile device to authenticate a print medium offline before completing printing onto the print medium, the mobile device including processing means, a printhead and a sensor, the print medium comprising a laminar substrate, the method comprising the steps of:
using the sensor to sense coded data provided on a surface of the substrate;
using the processing means:

determining, from the sensed coded data:
an identity of the print medium; and at least part of a signature, the signature being a digital signature of at least part of the identity;
determining, using the at least part of the signature, a determined signature;
generating, using the determined signature and a public key stored in the mobile device, a generated identity;
comparing the identity to the generated identity; and authenticating the print medium using the results of the comparison; and in the event the authentication step is successful, using the printhead to print onto the print medium.
893. A method according to claim 892, wherein the mobile device includes a receiver, the method comprising the steps, performed before the step of generating the generated identity, of:
using the receiver to receive data indicative of the public key; and storing the public key in memory of the mobile device.
894. A method according to claim 893, wherein the mobile device includes a transmitter, the method comprising the step of transmitting to a remote computer system a request for the public key, the receiver receiving the data indicative of the public key from the computer system in response to the request.
895. A method according to claim 892, further including the step of retrieving the key from a remote computer system prior to generating the generated identity.
896. A method according to claim 892, wherein the coded data includes a plurality of fragments of the signature, the method comprising determining a plurality of the signature fragments from the sensed coded data.
897. A method according to claim 896, wherein the coded data includes a plurality of coded data portions, each coded data portion encoding:
the identity; and at least a signature fragment;
wherein the method includes sensing a plurality of coded data portions to thereby determine the plurality of signature fragments.
898. A method according to claim 897, wherein the plurality of coded data portions.are sensed as the print medium moves past the sensor whilst moving along a print path defined in the mobile device.
899. A method according to claim 897, wherein each coded data portion encodes a signature fragment identity, and wherein the method includes:
determining the signature fragment identity of each determined signature fragment; and determining, using the determined signature fragment identities, the determined signature.
900. A method according to claim 897, wherein the coded data includes a plurality of tags, each coded data portion being formed from at least one of the tags.
901. A method according to claim 897, wherein the plurality of signature fragments are indicative of the entire signature.
902. A method according to claim 892, wherein the signature is a digital signature of at least part of the identity and at least part of predetermined padding, and wherein the method includes:
determining, using the identity, the predetermined padding; and, generating, using the predetermined padding and the determined signature, the generated identity.
903. A method according to claim 903, wherein the mobile device includes a transmitter and a receiver, the method comprising the steps of using the transmitter to send a first message to a remote computer system, the first message being indicative of the identity;
using the receiver to receive a second message from the remote computer system, the second message being including data indicative of padding associated with the signature; and generating, using the determined signature and the padding, the generated identity.
904. A method according to claim 897, wherein the coded data is further indicative of at least one of:
a location of at least one of the data portions;
a position of at least one of the data portions on the print medium;
a size of at least one of the data portions;
a size of the signature;
a size of the signature fragment;
an identity of the signature fragment;
units of indicated locations;
redundant data;
data allowing error correction;
Reed-Solomon data; and Cyclic Redundancy Check (CRC) data.
905. A method according to claim 892, wherein the digital signature includes at least one of:
a random number associated with the identity;
a keyed hash of at least the identity;
a keyed hash of at least the identity produced using a private key, and verifiable using a corresponding public key;
cipher-text produced by encrypting at least the identity;
cipher-text produced by encrypting at least the identity and a random number;
and, cipher-text produced using a private key, and verifiable using a corresponding public key.
906. A method according to claim 892, wherein the identity includes an identity of at least one of:
the print medium; and a region of the print medium.
907. A method according to claim 892, wherein the coded data includes a number of coded data portions, each coded data portion encoding:
an identity; and, at least part of a signature, the signature being a digital signature of at least part of the identity.
908. A method according to claim 892, further including the step of commencing printing prior to determining whether the authentication step is successful, and halting printing in the event authentication is not successful.
909. A method according to claim 892, wherein the print medium includes an orientation indicator, the method including the steps of:
sensing the orientation indicator prior to sensing the coded data; and preventing printing in the event the medium is inserted incorrectly.
910. A method according to claim 892, wherein the coded data is printed on the surface using at least one of an invisible ink and an infrared-absorptive ink, and wherein the method includes, sensing the coded data using an infrared sensor.
911. A method of using a mobile device to authenticate a printed token and output an image associated with the token, the mobile device comprising a sensor and processing means, the method comprising the steps of using the sensor to sense coded data on the printed token;
using the processing means to determine, from the sensed coded data, at least an identity of the token;
authenticating the token using the identity;
based on at least the identity, determining an image associated with the token; and outputting the image from the mobile device in a visible form.
912. A method according to claim 911, wherein the mobile device includes a display and the outputting step includes displaying the image on the display.
913. A method according to claim 911, wherein the mobile device includes a printhead and the outputting step includes printing the image onto a print medium with the printhead.
914. A method according to claim 912, wherein mobile device includes a transmitter and a receiver, the step of determining the image associated with the token comprising:
sending first data to a remote computer system using the transmitter, the first data being indicative of at least the identity; and receiving second data from the computer system via the receiver, the second data being indicative of the image.
915. A method according to claim 911, wherein mobile device includes a transmitter and a receiver, the method comprising:
using the processing means to determine, from the sensed coded data, at least part of a signature, the signature being a digital signature of at least part of the identity;
using the transmitter to send first data to a remote computer system, the first data being indicative of the identity and the at least part of the signature;
using the receiver to receive second data from the remote computer system in reply to the first data, the second data being indicative of whether the print medium is authentic based on the identity and the at least part of the signature.
916. A method according to claim 915, wherein the coded data includes a plurality of coded data portions, each coded data portion encoding:
the identity; and, at least a signature fragment;
wherein the method includes sensing a plurality of coded data portions thereby to determine a plurality of signature fragments representing the at least part of the signature.
917. A method according to claim 916, comprising sensing the plurality of coded data portions as the print medium moves past the sensor whilst moving along a print path defined in the mobile device.
918. A method according to claim 917, wherein each coded data portion encodes a signature fragment identity, and wherein the method includes:
determining the signature fragment identity of each determined signature fragment; and determining, using the determined signature fragment identities and the corresponding signature fragments, the at least part of the signature.
919. A method according to claim 916, wherein the plurality of signature fragments are indicative of the entire signature.
920. A method according to claim 916, wherein the coded data includes a plurality of tags, each coded data portion being formed from at least one of the tags.
921. A method according to claim 915, wherein the second data is further indicative of at least one of padding associated with the signature;
a private key; and a public key.
922. A method according to claim 911, comprising:
using the processing means to determine, from the sensed coded data, at least part of a signature, the signature being a digital signature of at least part of the identity;

determining, using the at least part of the signature, a determined signature;
generating, using the determined signature and a public key stored in the mobile device, a generated identity;
comparing the identity to the generated identity; and authenticating the print medium using the results of the comparison.
923. A method according to claim 922, wherein the mobile device includes a receiver, the method comprising the steps, performed before the step of generating the generated identity, of:
using the receiver to receive data indicative of the public key; and storing the public key in memory of the mobile device.
924. A method according to claim 923, wherein the mobile device includes a transmitter, the method comprising the step of transmitting to a remote computer system a request for the public key, the receiver receiving the data indicative of the public key from the computer system in response to the request.
925. A method according to claim 922, further including the step of retrieving the key from a remote computer system prior to generating the generated identity.
926. A method according to claim 922, wherein the coded data includes a plurality of fragments of the signature, the method comprising determining a plurality of the signature fragments from the sensed coded data.
927. A method according to claim 926, wherein the coded data includes a plurality of coded data portions, each coded data portion encoding:
the identity; and at least a signature fragment;
wherein the method includes sensing a plurality of coded data portions to thereby determine the plurality of signature fragments.
928. A method according to claim 927, wherein the plurality of coded data portions are sensed as the print medium moves past the sensor whilst moving along a print path defined in the mobile device.
929. A method according to claim 927, wherein each coded data portion encodes a signature fragment identity, and wherein the method includes:
determining the signature fragment identity of each determined signature fragment; and determining, using the determined signature fragment identities, the determined signature.
930. A method according to claim 914, wherein the print medium includes second coded data, the method comprising the step of printing the image onto the print medium, such that the print medium becomes a further token associated with the image.
931. A mobile device including:

a printer for printing onto a print medium; and a stylus having a printhead tip for allowing a user to use the mobile device as a writing or drawing device;
the stylus and the printer sharing at least one common ink reservoir.
932. A mobile device according to claim 931, wherein the stylus is supplied ink from the at least one common reservoir via at least one ink supply conduit.
933. A mobile device according to claim 932, wherein the at least one ink supply conduit is flexible.
934. A mobile device according to claim 933, wherein the at least one supply conduit includes power and data connections for the printhead chip.
935. A mobile device according to claim 933, further including a stylus retraction mechanism.
936. A mobile device according to claim 934, wherein the conduit include a flexible PCB carrying the power and data connections, the flexible PCB forming one wall of at least one ink supply tube.
937. A mobile device according to claim 936, wherein the conduit comprises a plurality of the ink supply tubes.
938. A mobile device according to claim 931, wherein the printer includes a replaceable cartridge, the cartridge including the at least one reservoir.
939. A mobile device according to claim 938, wherein the cartridge includes a plurality of the ink reservoirs.
940. A mobile device according to claim 938, wherein the cartridge includes a pagewidth printhead.
941. A mobile device according to claim 942, wherein mobile device includes a cradle for receiving the cartridge, the cartridge includes a plurality of contacts for receiving power and data from corresponding complementary contacts in a cradle.
942. A mobile device according to claim 938, the stylus forming part of the cartridge.
943. A mobile device according to claim 939, wherein the printhead tip includes an array of radially extending printhead nozzle rows.
944. A mobile device according to claim 943, wherein the rows extend in a straight radial line from a central region of the printhead tip.
945. A mobile device according to claim 943, wherein the rows curve outwardly from a central region of the printhead tip.
946. A mobile device according to claim 931, wherein the stylus includes a pressure sensor for determining when the stylus is in contact with a surface, the stylus being configured to print only when in contact with the surface.
947. A mobile device according to claim 946, wherein the pressure sensor is a switch.
948. A mobile device according to claim 931, wherein the printer further includes a capping mechanism including a capper moveable between:
a capping position in which the capper is urged into a capping relationship with the printhead; and an uncapped position in which the printhead is able to print onto the print medium, wherein in the uncapped position the capper is displaced away from the printhead;
wherein the capper is moved between the capped and uncapped position by an edge of the print medium as it moves through the feed path.
949. A mobile device according to claim 948, wherein in the capped position the capper is resiliently urged into the capping relationship.
950. A mobile device according to claim 949, wherein the capping mechanism is configured such that the capper is displaced in the feed direction as it moves from the capped position to the uncapped position.
951. A mobile telecommunications device comprising:
a first receiver for receiving signals from a mobile telephony system;

a first transmitter for transmitting signals over the mobile telephony system;
and a sylus allowing the user to use the mobile device as a writing or drawing device.
952. A mobile telecommunications device according to claim 951 further comprising:

a first sensor device for sensing coded data and for outputting raw data based on said sensed data; and a transmitter controller operable to control the first transmitter to transmit output data based at least partially on said sensed data via the mobile telephony system to a computer system.
953. A mobile telecommunications device according to claim 952 wherein the first sensing device is postioned on the stylus.
954. A mobile telecommunications device according to claim 952 wherein the sylus has a printhead tip with an array of nozzles to effect the writing or drawing.
955. A mobile telecommunications device according to claim 951 further comprising a printer mechanism with a pagewidth printhead for printing on a media substrate, the printhead positioned adjacent a media feed path through the device.
956. A mobile telecommunications device according to claim 955 wherein the printer mechanism is adapted to receive document data and to print an interface onto a surface, the interface being at least partially based on the document data, the document data including identity data indicative of at least one identity, the identity being associated with a region of the interface, the interface including coded data.
957. A mobile telecommunications device according to claim 955 further comprising at least one ink reservoir wherein the printhead tip in the stylus and the printer mechanism share the at least one ink reservoir.
958. A mobile telecommunications device according to claim 955 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
959. A mobile telecommunications device according to claim 955 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
960. A mobile telecommunications device according to claim 955 further comprising a transmitter controller adapted to cause the mobile telephone unit to transmit data based on the first data to a computer system via the first transmitter.
961. A mobile telecommunications device according to claim 954 wherein the printer mechanism further comprises a capper assembly movable between a capped position covering the nozzles and an uncapped position spaced from the nozzles; wherein, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
962. A mobile telecommunications device according to claim 961 wherein the sheet of media substrate is encoded with the coded data and the print engine controller uses a sensor to determine the position of the sheet relative to the printhead.
963. A mobile telecommunications device according to claim 961 further comprising a media feed roller for feeding the media past the printhead.
964. A mobile telecommunications device according to claim 961 wherein the media substrate is a sheet and the.
trailing edge of the sheet disengages from the media feed roller before it is printed and is projected past the printhead by its momentum.
965. A mobile telecommunications device according to claim 964 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
966. A mobile telecommunications device according to claim 961 wherein the capper assembly moves out of the capped position and toward the uncapped position upon engagement with the leading edge of the sheet.
967. A mobile telecommunications device according to claim 961 wherein the printhead is incorporated into a cartridge that further comprises a print media feed path for directing the print media past the printhead in a feed direction during printing, and a drive mechanism for driving the print media past the printhead for printing.
968. A mobile telecommunications device according to claim 961 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
969. A mobile telecommunications device according to claim 961 further comprising a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
970. A mobile telecommunications device according to claim 960 further comprising:
a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
971. A mobile telecommunications device comprising:
a first transmitter for transmitting signals over a mobile telephony system, and a first receiver for receiving signals from a mobile telephony system;
a first monochrome image sensor device for sensing coded data and for outputting raw data based on said sensed data; and a transmitter controller operable to control the first transmitter to transmit output data based at least partially on said sensed data via the mobile telephony system to a computer system.
972. A mobile telecommunications device according to claim 971 further comprising a sylus allowing the user to use the mobile telecommunications device as a writing or drawing device.
973. A mobile telecommunications device according to claim 972 wherein the first monochrome image sensor device is positioned on the stylus.
974. A mobile telecommunications device according to claim 972 wherein the stylus has a printhead tip with an array of nozzles to effect the writing or drawing.
975. A mobile telecommunications device according to claim 971 further comprising a printer mechanism with a pagewidth printhead for printing on a media substrate, the printhead positioned adjacent a media feed path through the device.
976. A mobile telecommunications device according to claim 975 wherein the printer mechanism is adapted to receive document data and to print an interface onto a surface, the interface being at least partially based on the document data, the document data including identity data indicative of at least one identity, the identity being associated with a region of the interface, the interface including coded data.
977. A mobile telecommunications device according to claim 975 further comprising at least one ink reservoir wherein the printhead tip in the stylus and the printer mechanism share the at least one ink reservoir.
978. A mobile telecommunications device according to claim 975 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more monochrome image sensor devices, the sensor devices transmitting data.
979. A mobile telecommunications device according to claim 975 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more monochrome image sensor devices, the sensor devices transmitting data.
980. A mobile telecommunications device according to claim 975 further comprising a transmitter controller adapted to cause the mobile telephone unit to transmit data based on the first data to a computer system via the first transmitter.
981. A mobile telecommunications device according to claim 974 wherein the printer mechanism further comprises a capper assembly movable between a capped position covering the nozzles and an uncapped position spaced from the nozzles; wherein, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
982. A mobile telecommunications device according to claim 981 wherein the sheet of media substrate is encoded with the coded data and the print engine controller uses a sensor to determine the position of the sheet relative to the printhead.
983. A mobile telecommunications device according to claim 981 further comprising a media feed roller for feeding the media past the printhead.
984. A mobile telecommunications device according to claim 981 wherein the media substrate is a sheet and the trailing edge of the sheet disengages from the media feed roller before it is printed and is projected past the printhead by its momentum.
985. A mobile telecommunications device according to claim 984 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
986. A mobile telecommunications device according to claim 981 wherein the capper assembly moves out of the capped position and toward the uncapped position upon engagement with the leading edge of the sheet.
987. A mobile telecommunications device according to claim 981 wherein the printhead is incorporated into a cartridge that further comprises a print media feed path for directing the print media past the printhead in a feed direction during printing, and a drive mechanism for driving the print media past the printhead for printing.
988. A mobile telecommunications device according to claim 981 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
989. A mobile telecommunications device according to claim 981 further comprising a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
990. A mobile telecommunications device according to claim 980 further comprising:
a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
991. A mobile telecommunications device comprising:

a first receiver for receiving signals from a mobile telephony system;

a first transmitter for transmitting signals over the mobile telephony system;
and a sylus allowing the user to use the mobile telecommunications device as a writing or drawing device.
992. A mobile telecommunications device according to claim 991 further comprising:

a first sensor device for sensing coded data and for outputting raw data based on said sensed data; and a transmitter controller operable to control the first transmitter to transmit output data based at least partially on said sensed data via the mobile telephony system to a computer system.
993. A mobile telecommunications device according to claim 992 wherein the first sensing device is postioned on the stylus.
994. A mobile telecommunications device according to claim 992 wherein the sylus has a printhead tip with an array of nozzles to effect the writing or drawing.
995. A mobile telecommunications device according to claim 991 further comprising a printer mechanism with a pagewidth printhead for printing on a media substrate, the printhead positioned adjacent a media feed path through the device.
996. A mobile telecommunications device according to claim 995 wherein the printer mechanism is adapted to receive document data and to print an interface onto a surface, the interface being at least partially based on the document data, the document data including identity data indicative of at least one identity, the identity being associated with a region of the interface, the interface including coded data.
997. A mobile telecommunications device according to claim 995 further comprising at least one ink reservoir wherein the printhead tip in the stylus and the printer mechanism share the at least one ink reservoir.
998. A mobile telecommunications device according to claim 995 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
999. A mobile telecommunications device according to claim 995 further comprising a second transmitter and a second receiver adapted to transmit data to and to receive data from one or more sensor devices, the sensor devices transmitting data.
1000. A mobile telecommunications device according to claim 995 further comprising a transmitter controller adapted to cause the mobile telephone unit to transmit data based on the first data to a computer system via the first transmitter.
1001. A mobile telecommunications device according to claim 994 wherein the printer mechanism further comprises a capper assembly movable between a capped position covering the nozzles and an uncapped position spaced from the nozzles; wherein, the capper assembly is held in the uncapped position by the media such that it moves to the capped position upon disengagement with the media.
1002. A mobile telecommunications device according to claim 1001 wherein the sheet of media substrate is encoded with the coded data and the print engine controller uses a sensor to determine the position of the sheet relative to the printhead.
1003. A mobile telecommunications device according to claim 1001 further comprising a media feed roller for feeding the media past the printhead.
1004. A mobile telecommunications device according to claim 1001 wherein the media substrate is a sheet and the trailing edge of the sheet disengages from the media feed roller before it is printed and is projected past the printhead by its momentum.
1005. A mobile telecommunications device according to claim 1004 wherein the capper assembly lightly grips the sheet after it has been printed so that it partially extends from the mobile telecommunications device in readiness for manual collection.
1006. A mobile telecommunications device according to claim 1001 wherein the capper assembly moves out of the capped position and toward the uncapped position upon engagement with the leading edge of the sheet.
1007. A mobile telecommunications device according to claim 1001 wherein the printhead is incorporated into a cartridge that further comprises a print media feed path for directing the print media past the printhead in a feed direction during printing, and a drive mechanism for driving the print media past the printhead for printing.
1008. A mobile telecommunications device according to claim 1001 wherein the printhead has an array of ink ejection nozzles and is incorporated into a cartridge that further comprises at least one ink reservoir for supplying ink to the printhead for ejection by the nozzles, each of the at least one ink reservoirs including at least one absorbent structure for inducing a negative hydrostatic pressure in the ink at the nozzles, and a capping mechanism for capping the printhead when not in use.
1009. A mobile telecommunications device according to claim 1001 further comprising a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.
1010. A mobile telecommunications device according to claim 1000 further comprising:

a drive shaft for feeding the sheet of media substrate past the printhead;
wherein during use, the sheet disengages from the drive shaft before completion of its printing such that the trailing edge of the sheet projects past the printhead by momentum to complete its printing.
1011. A method of producing a printed business card using a mobile telecommunications device, the mobile telecommunications device including processing means, a mobile transceiver for communicating with a mobile telecommunications network, and a printhead, the method comprising the steps, performed in the mobile telecommunications device, of:
(a) determining a business card to print;
(b) providing dot data to the printhead based on the business card determined in step (a); and (c) printing the dot data onto a print medium using the printhead, thereby to produce the printed business card.
1012. A method according to claim 1011, the mobile telecommunications device including a memory for storing information related to at least one business card, step (a) including accessing the information related to the at least one of the business cards stored in the memory.
1013. A method according to claim 1012, wherein the print medium includes pre-printed coded data and step (a) includes determining a relationship between coded data and the dot data, and step (c) includes printing the coded data in accordance with the determined relationship.
1014. A method according to claim 1013, including the step of determining a position of the print medium relative to the printhead prior to commencing printing, thereby to enable the printing to be performed in accordance with the relationship.
1015. A method according to claim 1014, wherein the medium includes a linear-encoded data track extending in a direction of intended printing, the method comprising the steps of using a sensor in the mobile telecommunications device, sensing the data track during printing;
deriving a clock signal from the sensed data track; and synchronizing the printing based on the clock signal.
1016. A method according to claim 1015, wherein the data track includes only a clock code.
1017. A method according to claim 1015, wherein the data track encodes first information, the clock code being embedded in the data track for extraction with the first information.
1018. A method according to claim 1015, wherein the data track includes parallel first and second tracks, the first track including a clock code and the second track encoding first information.
1019. A method according to claim 1017, wherein the print medium includes further coded data encoding second information, wherein the first information is indicative of the second information.
1020. A method according to claim 1019, wherein the further coded data is indicative of a plurality of reference points of the business card.
1021. A method according to claim 1021, wherein the further coded data is indicative of an identity of the print medium.
1022. A method according to claim 1015, wherein the coded data takes the form of a two-dimensional array of data, the sensor being configured to capture an image of a subset of the coded data, the subset of the coded data being sufficient to enable the location to be determined.
1023. A method according to claim 1022, the processing means being configured to determine a position of the print medium relative to the sensor at the time the coded data was sensed, based at least partly on the determined location and a position of the captured coded data in a capture field of the sensor.
1024. A method according to claim 1023, the mobile device further including a light emitting device, the method including the step of using the light emitting device to illuminate the print medium while the sensor senses the coded data.
1025. A method according to claim 1011, wherein the determining step includes retrieving, from a remote computer system and using the transceiver, information related to the business card.
1026. A method according to claim 1025, wherein the information includes personal information related to a user of the mobile telecommunications device.
1027. A method according to claim 1011, further including a step of determining a registration between the printed dot data and pre-printed coded data on the print medium, and using the transceiver to send, to a remote computer system, data indicative of the registration.
1028. A method according to claim 1027, comprising determining the registration during printing.
1029. A method according to claim 1027, comprising determining the registration prior to printing.
1030. A method of using a mobile device to print onto a print medium, the method comprising the steps of:
(a) determining print data;
(b) determining a first orientation of a print medium inserted into the mobile device; and (c) modifying a second orientation of the print data prior to printing onto the print medium, to take into account the first orientation.
1031. A method according to claim 1030, wherein the print medium includes at least one orientation indicator and the mobile device includes at least one sensor, step (b) comprising using the sensor to sense the orientation indicator and determining the orientation of the print medium from the sensed orientation indicator.
1032. A method according to claim 1031, the print medium including at least two of the orientation indicators, one on each alternate face of the print medium, the method comprising sensing one of the orientation indicators.
1033. A method according to claim 1030, comprising the step, prior to step (b), of determining whether the orientation of the print medium is a valid orientation to be printed upon, and preventing printing in the event it is not.
1034. A method according to claim 1033, wherein the print data is intended to be printed on a predetermined one of the alternate faces of the print medium the method including preventing printing if the print medium is inserted upside down such that the predetermined one of the faces cannot be printed onto.
1035. A method according to claim 1030, wherein step (c) includes rotating the print data by 180 degrees to take into account the first orientation.
1036. A method according to claim 1031, wherein one of the at least one orientation indicators is positioned adjacent a first corner of the print medium.
1037. A method according to claim 1036, wherein another of the at least one orientation indicators is positioned adjacent a second corner of the print medium on the first face, the second corner being diagonally opposite the first corner.
1038. A method according to claim 1030, at least one orientation indicator is printed in infrared ink.
1039. A method according to claim 1038, wherein the at least one orientation indicator is printed in infrared ink that is substantially invisible to an average unaided human eye.
1040. A method according to claim 1030, wherein the print medium further comprises first coded data encoding first information, the first information being indicative of a physical characteristic of the print medium.
1041. A method according to claim 1040, wherein the first information is indicative of a size of the print medium.
1042. A method according to claim 1041, wherein the first information is indicative of a media type associate with the print medium.
1043. A method according to claim 1041, wherein the first information is indicative of information pre-printed onto the print medium.
1044. A method according to claim 1041, wherein the first information is encoded into the coded data in accordance with a linear encoding scheme.
1045. A method according to claim 1044, wherein the first coded data takes the form of a data track.
1046. A method according to claim 1045, wherein the data track extends along an edge of the print medium.
1047. A method according to claim 1045, including at least two of the data tracks, each of which encodes the first information.
1048. A method according to claim 1030, further including second coded data containing second information encoded in accordance with a second encoding scheme distinct from the linear encoding scheme, wherein the first information is indicative of the second information.
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