GB1423405A - Facsimile printer - Google Patents

Facsimile printer

Info

Publication number
GB1423405A
GB1423405A GB3248175A GB3248175A GB1423405A GB 1423405 A GB1423405 A GB 1423405A GB 3248175 A GB3248175 A GB 3248175A GB 3248175 A GB3248175 A GB 3248175A GB 1423405 A GB1423405 A GB 1423405A
Authority
GB
United Kingdom
Prior art keywords
laser
signal
scan
feb
light beam
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.)
Expired
Application number
GB3248175A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1423405A publication Critical patent/GB1423405A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
    • G06K15/1219—Detection, control or error compensation of scanning velocity or position, e.g. synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
    • H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • H04N1/29—Reproducing arrangements involving production of an electrostatic intermediate picture

Abstract

1423405 Copying by scanning XEROX CORP 16 Feb 1973 [22 Feb 1972] 32481/75 Divided out of 1423404 Heading H4F The light beam produced by a laser 11 is used to scan a photoresponsive surface 65 forming part of a xerographic process to produce a facsimile image on paper 71 in response to a received signal, feedback means 46 stabilizing the laser output. A galvanometer 20 having an oscillating mirror 21 is used to provide the line scan, the frame scan being produced by movement of surface 65. The received facsimile signal may be used to modulate the intensity of the light beam from the laser either directly as an anologue signal or after conversion to digital form at 43 and subsequent modulation at 44 on to a high frequency wave HFW.
GB3248175A 1972-02-22 1973-02-16 Facsimile printer Expired GB1423405A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22793972A 1972-02-22 1972-02-22
US22776372A 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
GB1423405A true GB1423405A (en) 1976-02-04

Family

ID=26921733

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3248175A Expired GB1423405A (en) 1972-02-22 1973-02-16 Facsimile printer
GB782073A Expired GB1423404A (en) 1972-02-22 1973-02-16 Facsimile system scanner

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB782073A Expired GB1423404A (en) 1972-02-22 1973-02-16 Facsimile system scanner

Country Status (8)

Country Link
BE (1) BE795802A (en)
CA (2) CA1003483A (en)
DE (1) DE2303595C2 (en)
ES (1) ES411830A1 (en)
FR (1) FR2173052B1 (en)
GB (2) GB1423405A (en)
IT (1) IT979288B (en)
NL (1) NL7302446A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU500199B2 (en) * 1975-01-13 1979-05-10 Associated Press, The Facsimile reproduction system
US4081842A (en) * 1976-06-14 1978-03-28 Eocom Corporation Facsimile system
US4234250A (en) * 1977-07-15 1980-11-18 Xerox Corporation Electrophotographic printing system
US4516023A (en) * 1982-06-03 1985-05-07 Klimsch/Optronics Scanner/plotter optical system
DE3479469D1 (en) * 1983-06-24 1989-09-21 Fuji Photo Film Co Ltd Image scanning read-out apparatus
DE3325126C1 (en) * 1983-07-12 1985-01-31 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Surface scanning device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1564581C3 (en) * 1966-04-27 1973-11-29 Siemens Ag, 1000 Berlin U. 8000 Muenchen Arrangement for amplitude stabilization of a laser
US3614312A (en) * 1968-12-31 1971-10-19 Texas Instruments Inc Light beam deflection
DE2006981B2 (en) * 1969-02-20 1972-01-20 ARRANGEMENT FOR TRANSPORTING SHEETS THROUGH A CONVERTER STATION
US3751138A (en) * 1972-03-16 1973-08-07 Humphrey Res Ass Variable anamorphic lens and method for constructing lens

Also Published As

Publication number Publication date
CA1002653A (en) 1976-12-28
IT979288B (en) 1974-09-30
FR2173052B1 (en) 1982-09-10
GB1423404A (en) 1976-02-04
DE2303595C2 (en) 1982-10-28
BE795802A (en) 1973-08-22
NL7302446A (en) 1973-08-24
FR2173052A1 (en) 1973-10-05
AU5245173A (en) 1974-08-22
CA1003483A (en) 1977-01-11
ES411830A1 (en) 1976-05-01
DE2303595A1 (en) 1973-08-30

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930214