FR2397662A1 - Procede et appareil d'impression electrophotographique - Google Patents

Procede et appareil d'impression electrophotographique

Info

Publication number
FR2397662A1
FR2397662A1 FR7820620A FR7820620A FR2397662A1 FR 2397662 A1 FR2397662 A1 FR 2397662A1 FR 7820620 A FR7820620 A FR 7820620A FR 7820620 A FR7820620 A FR 7820620A FR 2397662 A1 FR2397662 A1 FR 2397662A1
Authority
FR
France
Prior art keywords
exposure
laser beam
printing process
original
electrophotographic printing
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
FR7820620A
Other languages
English (en)
Other versions
FR2397662B1 (fr
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 FR2397662A1 publication Critical patent/FR2397662A1/fr
Application granted granted Critical
Publication of FR2397662B1 publication Critical patent/FR2397662B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/011—Details of unit for exposing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

L'invention concerne un procédé et un appareil de reproduction électrophotographique. Des reproductions de documents originaux sont obtenues en soumettant un support photoconducteur chargé, successivement à au moins deux expositions par un faisceau de laser commandé électro-optiquement, chaque exposition représentant une composante de couleur séparée de l'original. L'exposition au faisceau de laser peut se faire simultanément avec une exposition à un document original opaque ou transparent, ou les deux. L'invention s'applique notamment à la reprographie xérographique en couleurs.
FR7820620A 1977-07-15 1978-07-11 Procede et appareil d'impression electrophotographique Expired FR2397662B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/816,126 US4234250A (en) 1977-07-15 1977-07-15 Electrophotographic printing system

Publications (2)

Publication Number Publication Date
FR2397662A1 true FR2397662A1 (fr) 1979-02-09
FR2397662B1 FR2397662B1 (fr) 1985-09-06

Family

ID=25219755

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820620A Expired FR2397662B1 (fr) 1977-07-15 1978-07-11 Procede et appareil d'impression electrophotographique

Country Status (7)

Country Link
US (1) US4234250A (fr)
JP (1) JPS5421742A (fr)
BE (1) BE868940A (fr)
CA (1) CA1111098A (fr)
DE (1) DE2826866A1 (fr)
FR (1) FR2397662B1 (fr)
GB (1) GB1597549A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007756A1 (fr) * 1978-07-20 1980-02-06 Xerox Corporation Procédé et appareil pour la formation d'une image composée

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113065A (en) * 1979-02-23 1980-09-01 Ricoh Co Ltd Image synthesizing two-color recorder
US4236809A (en) * 1979-09-04 1980-12-02 Xerox Corporation Low resolution correction apparatus and method for electrophotographic copiers
US4661859A (en) * 1981-06-03 1987-04-28 Xerox Corporation Pulse width modulation greyscale system for halftone printer
JPS5831359A (ja) * 1981-08-20 1983-02-24 Matsushita Electric Ind Co Ltd 画像記録装置
US4403848A (en) * 1982-02-17 1983-09-13 Xerox Corporation Electronic color printing system
US4494865A (en) * 1982-12-13 1985-01-22 Battelle Development Corporation Providing patterns
JPS61170754A (ja) * 1985-01-24 1986-08-01 Konishiroku Photo Ind Co Ltd カラ−画像形成装置
JPS61238620A (ja) * 1985-04-12 1986-10-23 Hitachi Ltd 画像記録装置
EP0217503B1 (fr) * 1985-07-27 1991-10-30 Konica Corporation Procédé de traitement d'images et appareil de formation d'images
EP0730370B1 (fr) * 1985-11-18 2002-02-06 Canon Kabushiki Kaisha Dispositif de formation d'image
US4777510A (en) * 1986-12-11 1988-10-11 Eastman Kodak Company Copying apparatus and method with editing and production control capability
GB2230868B (en) * 1986-04-01 1991-01-23 Brother Ind Ltd Optical printing system
US4783680A (en) * 1987-09-30 1988-11-08 Xerox Corporation Halftone screening system for printer/copier
US5021833A (en) * 1988-12-13 1991-06-04 Sharp Kabushiki Kaisha Copying machine with multiple light sources
US5010366A (en) * 1989-06-15 1991-04-23 Eastman Kodak Company Slide transparency projector apparatus for use with an electrophotographic reproduction machine
US5262259A (en) * 1990-01-03 1993-11-16 Minnesota Mining And Manufacturing Company Toner developed electrostatic imaging process for outdoor signs
US7479973B2 (en) * 2005-12-23 2009-01-20 Dell Products L.P. Method and apparatus for producing an image

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909254A (en) * 1970-12-28 1975-09-30 Rank Xerox Ltd Laser recording method
FR2312802A1 (fr) * 1975-05-27 1976-12-24 Eastman Kodak Co Copieur photographique muni d'un dispositif d'analyse qui fournit des signaux electriques representatifs d'un original et d'un poste d'exposition exploitant ces signaux
BE846804A (fr) * 1975-11-03 1977-01-17 Dispositif de reproduction et d'impression electrophotographique
US4012776A (en) * 1975-06-23 1977-03-15 Xerox Corporation Luminescent screen laser scanning technique
US4014607A (en) * 1976-03-03 1977-03-29 Xerox Corporation Removable screening system for a transparency reproduction machine
US4027962A (en) * 1975-01-13 1977-06-07 Xerox Corporation Color transparency reproducing machine
US4058828A (en) * 1975-05-27 1977-11-15 Eastman Kodak Company Document copying apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040665C3 (de) * 1970-08-17 1979-01-04 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Herstellung farbiger Papierbilder und Vorrichtung zur Durchführung des Verfahrens
CA1003483A (en) * 1972-02-22 1977-01-11 Xerox Corporation Laser printer
US3906897A (en) * 1972-05-22 1975-09-23 Xerox Corp Development apparatus
US3893854A (en) * 1973-03-30 1975-07-08 Xerox Corp Photographic articles with gaps for processing fluids
US3864697A (en) * 1973-07-25 1975-02-04 Eastman Kodak Co Non-impact printer
US3934549A (en) * 1974-08-01 1976-01-27 Xerox Corporation Transfer apparatus
US3936182A (en) * 1974-08-12 1976-02-03 Xerox Corporation Control arrangement for an electrostatographic reproduction apparatus
US4027961A (en) * 1976-04-06 1977-06-07 Xerox Corporation Copier/raster scan apparatus
US4070089A (en) * 1976-07-01 1978-01-24 Xerox Corporation Two dimensional laser scanner with movable cylinder lens

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909254A (en) * 1970-12-28 1975-09-30 Rank Xerox Ltd Laser recording method
US4027962A (en) * 1975-01-13 1977-06-07 Xerox Corporation Color transparency reproducing machine
FR2312802A1 (fr) * 1975-05-27 1976-12-24 Eastman Kodak Co Copieur photographique muni d'un dispositif d'analyse qui fournit des signaux electriques representatifs d'un original et d'un poste d'exposition exploitant ces signaux
US4058828A (en) * 1975-05-27 1977-11-15 Eastman Kodak Company Document copying apparatus
US4012776A (en) * 1975-06-23 1977-03-15 Xerox Corporation Luminescent screen laser scanning technique
BE846804A (fr) * 1975-11-03 1977-01-17 Dispositif de reproduction et d'impression electrophotographique
FR2330048A1 (fr) * 1975-11-03 1977-05-27 Ibm Dispositif de reproduction et d'impression electrophotographique
US4014607A (en) * 1976-03-03 1977-03-29 Xerox Corporation Removable screening system for a transparency reproduction machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007756A1 (fr) * 1978-07-20 1980-02-06 Xerox Corporation Procédé et appareil pour la formation d'une image composée

Also Published As

Publication number Publication date
GB1597549A (en) 1981-09-09
BE868940A (fr) 1978-11-03
JPS5421742A (en) 1979-02-19
US4234250A (en) 1980-11-18
DE2826866A1 (de) 1979-02-01
FR2397662B1 (fr) 1985-09-06
CA1111098A (fr) 1981-10-20

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Legal Events

Date Code Title Description
ST Notification of lapse