GB2473063A - Ink cartridge for a printer - Google Patents

Ink cartridge for a printer Download PDF

Info

Publication number
GB2473063A
GB2473063A GB0915138A GB0915138A GB2473063A GB 2473063 A GB2473063 A GB 2473063A GB 0915138 A GB0915138 A GB 0915138A GB 0915138 A GB0915138 A GB 0915138A GB 2473063 A GB2473063 A GB 2473063A
Authority
GB
United Kingdom
Prior art keywords
ink cartridge
cartridge
source
reflector
tank
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.)
Withdrawn
Application number
GB0915138A
Other versions
GB0915138D0 (en
Inventor
Nigel John Counihan
Kevin Vickers
John William Studholme
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.)
Dynamic Cassette International Ltd
Original Assignee
Dynamic Cassette International Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dynamic Cassette International Ltd filed Critical Dynamic Cassette International Ltd
Priority to GB0915138A priority Critical patent/GB2473063A/en
Publication of GB0915138D0 publication Critical patent/GB0915138D0/en
Publication of GB2473063A publication Critical patent/GB2473063A/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17543Cartridge presence detection or type identification
    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/1752Mounting within the printer
    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17543Cartridge presence detection or type identification
    • B41J2/17546Cartridge presence detection or type identification electronically
    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17553Outer structure
    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17566Ink level or ink residue control
    • 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
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17566Ink level or ink residue control
    • B41J2002/17573Ink level or ink residue control using optical means for ink level indication

Abstract

An ink cartridge 10 for a printer 102 comprises a tank 12 for receiving ink, a source of electromagnetic radiation and a reflector 18 spaced above the source 68 to reflect light therefrom in a desired direction suitable for viewing by a user, such that the radiation passes from the source 68 to the reflector 18 through atmosphere i.e. air serving as the transfer medium. The source of electromagnetic radiation 68 may be a source of visible light and may be an LED. The reflector 18 may be a mirror or aluminium foil.

Description

Ink Cartridge for a Printer The invention relates to a cartridge for a printer.

A known ink cartridge for a printer is disclosed in EP1650033. This document discloses a cartridge comprising an ink container with an integral lever extending from the lower part of the front wall. A chip is provided at the lower end of the lever. The chip has contacts in the form of an electrode pad facing away from the lever to contact a contactor of the printer. On the opposite side of the chip from the electrode pad is an LED and a control element to control emission of light from the LED in response to an electric signal supplied from the printer through the contact pad. A light guide is provided which extends substantially vertically from the lower portion of the lever so that the light from the LED is directed up the light guide. The lever includes a barb to lock into a recess in the cartridge holder of the printer. In this way, pushing the cartridge into the cartridge holder flexes the lever and allows the barb to be received in the recess to lock the cartridge into the cartridge holder. A user can then push the top of the lever to remove the barb from the recess so that the cartridge can be removed from the printer.

When the cartridge is installed in the cartridge holder, the LED is down inside the cartridge holder. The light guide enables the light from the LED to be presented at the top of the cartridge for viewing by a user.

Presence or absence of light visible to the user can provide information about the cartridge, for example information as to whether or not the cartridge is properly mounted in the printer, or whether it is mounted in the correct position in the cartridge holder of the printer in view of the colour of the ink in the cartridge, and information about the amount of ink remaining in the cartridge.

The light guide represents additional material which must be incorporated to make the cartridge and additional complexity in manufacture. It also means that transparent plastic must be used rather than opaque material.

According to the invention there is provided an ink cartridge for a printer, the cartridge comprising a tank for receiving ink, a source of electromagnetic radiation, and a reflector spaced from the source to reflect radiation therefrom in a desired direction such that the radiation passes from the source to the reflector through atmosphere.

In this way, no light guide is required. This reduces the amount of material required to make the cartridge and also reduces the complexity of manufacture.

Furthermore, it means that transparent material does not have to be used, which in turn means that opaque material, such as recycled plastic, can be used which is better for the environment.

The source may be a source of any suitable type of electromagnetic radiation, such as infra red radiation, for example, to be received by a detector on a printer, but preferably the source is a source of visible light, and hence it may be viewed by a user. In particular, the source is preferably an LED.

The reflector may take any suitable form and in one embodiment may comprise a pale coloured, preferably white, surface. The surface is preferably shiny.

In another embodiment, the reflector may be a mirror surface. In that case, the reflector may be aluminium foil.

The reflector may be arranged at substantially 45° to a side of the tank.

The source and reflector may be arranged in any suitable manner in relation to the ink tank. The reflector is preferably at an upper part of the cartridge and the source is preferably at a lower part of the cartridge. The source is preferably below the reflector in the direction of insertion of the cartridge into the printer. Hence the reflector may be above the source and the source may radiate radiation upwards to the reflector. The source and the reflector may be on the same side of the tank and preferably are mounted to one of the shortest sides of the tank where the tank is a generally rectangular parallelepiped in shape.

The cartridge may include means for electrical connection of the cartridge to the printer. The means may take any suitable form and may comprise at least one electrical contact to be contacted by a contactor of the printer. The means and source are conveniently mounted on a common element which may be a substantially flat element such as a circuit board or chip. In a preferred embodiment, the means and the source are provided on opposite sides of the element. The element may be mounted on a part of the cartridge which is spaced from the tank. The part may comprise a loop or lever attached to the tank. In that case, the part may define a cutaway through which radiation from the source passes to reach the reflector. Where the element is substantially flat, the cartridge may include a sleeve into which the flat element is received to mount it. The direction of sliding is preferably perpendicular to a major side of the tank. The direction of sliding is preferably perpendicular to the direction of travel of radiation from the source to the reflector.

An embodiment of the invention will now be described by way of example and with reference to the accompanying drawings, in which: Figure 1 is a side elevation of a cartridge in the embodiment of the invention; Figure 2 is a front elevation of the cartridge of Figure 1; Figure 3 is an elevation from the other side of the cartridge of Figure 1; Figure 4 is a top plan view of the cartridge of Figure 1; Figure 5 is an underneath plan view of the cartridge of Figure 1; Figures 6 to 9 are perspective views of the cartridge of Figure 1; and Figure 10 is a side elevation of the cartridge of Figure 1 in the cartridge holder of a printer, the printer being shown in cross-section, and the user's eye also being shown together with an arrowed line showing the path of light from the LED on the cartridge to the user's eye via the reflector.

The cartridge 10 of the embodiment of the invention comprises an ink tank 12, a loop 14, a chip 16 and a reflector 18.

The ink tank 12 of the cartridge 10 is a generally rectangular parallelepiped in shape, the major sides 20, 22, the top 24 and back wall 26 being flat, the underside 28 being flat with an intrusion 30, and the front wall 32 being contoured.

The reflector 18 comprises a wedge 19 with one short side connected to an extension of the top surface 24 of the ink tank and another short side connected to the front wall 32 of the ink tank 12, the longest side 34 of the wedge being arranged substantially at 45° to the horizontal as represented by the top surface 24 of the ink tank 12. On the slanted surface 34 is adhered a self-adhesive patch of aluminium foil 36 to form a reflecting mirror surface 38.

The loop 14 is also connected to the front wall 32 of the ink tank 12. The loop 14 comprises a strip 40 which is attached to the lower part of the front wall 32 of the ink tank through a sleeve mounting 42 and is connected to the upper part of the front wall 32 of the ink tank 12 below the reflector 18 through a strut 44 from the side of the strip 40. A finger pad 46 with ribs 48 is attached to the front of the strip 40.

Below the finger pad 46, an outward protrusion 50 protrudes from the strip 40.

The mounting sleeve 42 of the ioop 14 is open to one side so that the chip 16 can be slid into it to be mounted thereby. The mounting sleeve 42 receives the top and bottom edges of the chip substrate board 60 of the chip 16 as well as one side edge once it is fully inserted. The chip 16 has a metal electrical contact pad 62 on one major side of the substrate board which is exposed when the chip is mounted in the mounting sleeve 42 through a front window 64 in the mounting sleeve 42. On the opposite, rear surface of the substrate board 60 of the chip 16 are provided a memory device 66 and an LED 68 which are visible through a rear window 70 in the chip mounting sleeve 42.

From the front of the cartridge, the chip 16, strip 40, finger pad 46, reflector 18 and projector 50 are all appear symmetrical about a notional vertical centre line of the front wall 32 of the ink tank 12 between the major sides 20, 22. The strip 40 and chip mounting sleeve 42 however are cut away at the rear to provide an upright channel 80 therethrough for light from the LED 68 so that the light from the LED 68 on the chip 16 has a direct path to reach the reflector 18.

On the underneath surface 28 of the ink tank 12 there is an ink outlet port 80 at the opposite end thereof from the end adjacent the chip 16.

A lug 82 protrudes from the rear wall 26.

Figure 10 shows the cartridge 10 inserted in the cartridge holder 100 of a printer 102.

To insert the cartridge 10 into the printer 102, the end of the cartridge 10 including the ink supply port 80 is inserted into the cartridge holder 100 so that the lug 82 is received in an aperture 104 in the cartridge holder 100 and so that an ink withdrawal needle 106 of the printer 102 is received in the ink supply port 80 of the cartridge 10. In order for the front of the cartridge 10 to be received in the cartridge holder 100, the loop 14 must be pushed towards the front wall 32 by pushing on the finger pad 46. The protrusion 50 can then pass the front wall 108 of the cartridge holder 100 to be received in an aperture 110 therein on release of the finger pad 46 by the user. In the fully inserted position, a contactor 112 on the floor of the cartridge holder 100 is in physical contact with the metal electrical contact pad 62 of the chip 16. In use, an electrical signal can be sent through the contactor 112 of the printer 102 which is received by the chip 16 through the contact pad 62 so that, if appropriate, the LED 68 can be illuminated. When the LED 68 is illuminated, light shines from the LED 68 and, as shown by the arrowed path in Figure 10, will pass through the cutaway channel 80 in the sleeve 42 and strip 40, and will pass alongside the strut 44 to reach the reflector 18. Thus the light passes up vertically to the reflector 18 where it is reflected horizontally so that it can be seen by the eye 120 of a user.

The ink tank 12, loop 14 and reflector 18 can all be made of recycled opaque plastic. The cost and complexity of a light guide is avoided. The reflecting patch of foil 38 is inexpensive and, being self-adhesive, is not difficult to fit. The cartridge 10 of the invention thus provides a simple and elegant design which is environmentally friendly.

In another embodiment, the reflector wedge 18 may be made of white plastic and the slanted surface 34 may be polished. Thus, the surface 34 will not reflect like a mirror, but it will be quite clear to a user from reflection from the shiny white surface if the LED 68 is illuminated or not.

In a further embodiment, the LED 68 may radiate infra red radiation, in which case the slanted surface 34 may be angled to direct the infra red radiation onto a detector of the printer 102, so that information about the cartridge 10 can be transmitted from the cartridge 10 to the printer 102.

Claims (28)

  1. CLAIMS1. An ink cartridge for a printer, the cartridge comprising a tank for receiving ink, a source of electromagnetic radiation, and a reflector spaced from the source to reflect radiation therefrom in a desired direction such that the radiation passes from the source to the reflector through atmosphere.
  2. 2. An ink cartridge as claimed in claim 1, wherein the source is a source of visible light.
  3. 3. An ink cartridge as claimed in claim 1 or claim 2, wherein the source is an LED.
  4. 4. An ink cartridge as claimed in claim 1, 2 or 3, wherein the reflector comprises a pale coloured surface.
  5. 5. An ink cartridge as claimed in claim 4, wherein the reflector comprises a white surface.
  6. 6. An ink cartridge as claimed in any preceding claim, wherein the reflector comprises a shiny surface. * * SSS S
  7. 7. An ink cartridge as claimed in any of claims 1, 2 and 3, wherein the reflector is IS..a mirror surface. *SS* * S S*. * 25
  8. 8. An ink cartridge as claimed in claim 7, wherein the reflector is aluminium foil.S5.5...*
  9. 9. An ink cartridge as claimed in any preceding claim, wherein the reflector is * S. 5*.* arranged at substantially 45° to a side of the tank.
  10. 10. An ink cartridge as claimed in any preceding claim, wherein the reflector is at an upper part of the cartridge.
  11. 11. An ink cartridge as claimed in any preceding claim, wherein the source is at a lower part of the cartridge.
  12. 12. An ink cartridge as claimed in any preceding claim, wherein the source is below the reflector in the direction of insertion of the cartridge into the printer.
  13. 13. An ink cartridge as claimed in any preceding claim, wherein the source and the reflector are on the same side of the tank.
  14. 14. An ink cartridge as claimed in any preceding claim, wherein the tank is a generally rectangular parallelepiped in shape.
  15. 15. An ink cartridge as claimed in claim 14, wherein the source and reflector are mounted to one of the shortest sides of the tank.
  16. 16. An ink cartridge as claimed in any preceding claim, wherein the cartridge includes means for electrical connection of the cartridge to the printer.
  17. 17. An ink cartridge as claimed in claim 16, wherein the means comprises at least one electrical contact to be contacted by a contactor of the printer.
  18. 18. An ink cartridge as claimed in claim 16 or claim 17, wherein the means and * **. source are mounted on a conimon element. ****: 25
  19. 19. An ink cartridge as claimed in claim 18, wherein the common element is a substantially flat element. **
  20. 20. An ink cartridge as claimed in claim 18, wherein the cartridge includes a S.....* sleeve into which the flat element is received to mount it.
  21. 21. An ink cartridge as claimed in claim 20, wherein the direction of sliding into the sleeve is perpendicular to a major side of the tank.
  22. 22. An ink cartridge as claimed in claim 20 or claim 21, wherein the direction of sliding into the sleeve is perpendicular to the direction of travel of radiation from the source to the reflector.
  23. 23. An ink carti-idge as claimed in any of claims 18 to 22, wherein the element is a circuit board or chip.
  24. 24. An ink cartridge as claimed in any of claims 18 to 23, wherein the means and the source are provided on opposite sides of the element.
  25. 25. An ink cartridge as claimed in any of claims 18 to 24, wherein the element is mounted on a part of the cartridge which is spaced from the tank.
  26. 26. An ink cartridge as claimed in claim 25, wherein the part comprises a ioop or lever attached to the tank.
  27. 27. An ink cartridge as claimed in claim 25 or claim 26, wherein the part defines a cutaway through which radiation from the source passes to reach the reflector.
  28. 28. An ink cartridge for a printer, the ink cartridge being substantially as described herein, andlor as shown in the accompanying drawings. * * * ** S I... * * S. S * SS S. *I* *SSS * * * *S...S * .
GB0915138A 2009-08-28 2009-08-28 Ink cartridge for a printer Withdrawn GB2473063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0915138A GB2473063A (en) 2009-08-28 2009-08-28 Ink cartridge for a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0915138A GB2473063A (en) 2009-08-28 2009-08-28 Ink cartridge for a printer

Publications (2)

Publication Number Publication Date
GB0915138D0 GB0915138D0 (en) 2009-10-07
GB2473063A true GB2473063A (en) 2011-03-02

Family

ID=41202924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0915138A Withdrawn GB2473063A (en) 2009-08-28 2009-08-28 Ink cartridge for a printer

Country Status (1)

Country Link
GB (1) GB2473063A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547782A2 (en) * 2003-12-26 2005-06-29 Canon Kabushiki Kaisha Liquid container and manufacturing method therefor
EP1650033A1 (en) * 2004-10-20 2006-04-26 Canon Kabushiki Kaisha Liquid container and ink jet recording apparatus
EP1990199A1 (en) * 2007-05-08 2008-11-12 Kmp Printtechnik Ag Ink cartridge with monitoring device
US20090128609A1 (en) * 2003-12-26 2009-05-21 Canon Kabushiki Kaisha Liquid container and liquid supplying system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547782A2 (en) * 2003-12-26 2005-06-29 Canon Kabushiki Kaisha Liquid container and manufacturing method therefor
US20090128609A1 (en) * 2003-12-26 2009-05-21 Canon Kabushiki Kaisha Liquid container and liquid supplying system
EP1650033A1 (en) * 2004-10-20 2006-04-26 Canon Kabushiki Kaisha Liquid container and ink jet recording apparatus
EP1990199A1 (en) * 2007-05-08 2008-11-12 Kmp Printtechnik Ag Ink cartridge with monitoring device

Also Published As

Publication number Publication date
GB0915138D0 (en) 2009-10-07

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)