GB1309644A - Multi-colour electrophotographic process - Google Patents

Multi-colour electrophotographic process

Info

Publication number
GB1309644A
GB1309644A GB1647670A GB1647670A GB1309644A GB 1309644 A GB1309644 A GB 1309644A GB 1647670 A GB1647670 A GB 1647670A GB 1647670 A GB1647670 A GB 1647670A GB 1309644 A GB1309644 A GB 1309644A
Authority
GB
United Kingdom
Prior art keywords
marks
originals
colour
photo
april
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
GB1647670A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1309644A publication Critical patent/GB1309644A/en
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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/01—Electrographic processes using a charge pattern for multicoloured copies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1309644 Electro-photographic processes FUJI PHOTO FILM CO Ltd 7 April 1970 [8 April 1969] 16476/70 Heading G2H A multi-colour electro-photographic process comprises passing a series of originals through a projector, exposing a series of charged photoconductive sheets or areas to respective originals through a first filter, developing the images with a first colour, and repeating the process with differently coloured filters and developers; identification marks being made on the photoconductive sheets or areas during the first exposure corresponding to marks on the originals so that during subsequent exposures the marks can be compared and each photo-conductive sheet or area can be re-exposed to the correct original. The marks may be produced for photo-electric detection and comparison, or may comprise punched holes for detection by feelers which operate micro-switches in an alarm circuit or in an exposure-prevention circuit.
GB1647670A 1969-04-08 1970-04-07 Multi-colour electrophotographic process Expired GB1309644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44027048A JPS4826778B1 (en) 1969-04-08 1969-04-08

Publications (1)

Publication Number Publication Date
GB1309644A true GB1309644A (en) 1973-03-14

Family

ID=12210173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1647670A Expired GB1309644A (en) 1969-04-08 1970-04-07 Multi-colour electrophotographic process

Country Status (6)

Country Link
US (1) US3656947A (en)
JP (1) JPS4826778B1 (en)
BE (1) BE748591A (en)
DE (1) DE2016811C3 (en)
FR (1) FR2043024A5 (en)
GB (1) GB1309644A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212932A (en) * 1985-10-08 1989-08-02 Martin Terence David Howard Photographic printing apparatus
GB2213948A (en) * 1988-01-05 1989-08-23 Dixons Colour Lab Limited Reproducing information onto a photographic print.
GB2226647A (en) * 1988-12-02 1990-07-04 Seiko Instr Inc Colour image recording apparatus
GB2245374A (en) * 1990-05-29 1992-01-02 Printing Tech Equipment Ltd Plate handling apparatus
GB2288669A (en) * 1994-04-20 1995-10-25 Heidelberger Druckmasch Ag Method of controlling the imaging of a printing forme
US5816164A (en) * 1994-04-20 1998-10-06 Heidelberger Druckmaschinen Ag Method and apparatus for monitoring image formation on a printing form

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443170U (en) * 1977-08-30 1979-03-24

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057720A (en) * 1959-05-04 1962-10-09 Xerox Corp Xerographic color reproduction
US3181418A (en) * 1961-07-25 1965-05-04 Rca Corp Projection apparatus
US3307458A (en) * 1964-06-04 1967-03-07 Harris Intertype Corp Electrophotographic apparatus
US3427658A (en) * 1966-05-06 1969-02-11 Harris Intertype Corp Electrophotographic apparatus and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212932A (en) * 1985-10-08 1989-08-02 Martin Terence David Howard Photographic printing apparatus
GB2212932B (en) * 1985-10-08 1990-02-21 Martin Terence David Howard Photographic apparatus and methods
GB2213948A (en) * 1988-01-05 1989-08-23 Dixons Colour Lab Limited Reproducing information onto a photographic print.
GB2226647A (en) * 1988-12-02 1990-07-04 Seiko Instr Inc Colour image recording apparatus
GB2245374A (en) * 1990-05-29 1992-01-02 Printing Tech Equipment Ltd Plate handling apparatus
GB2245374B (en) * 1990-05-29 1994-11-30 Printing Tech Equipment Ltd Plate handling apparatus
GB2288669A (en) * 1994-04-20 1995-10-25 Heidelberger Druckmasch Ag Method of controlling the imaging of a printing forme
GB2288669B (en) * 1994-04-20 1997-12-03 Heidelberger Druckmasch Ag Method of controlling the imaging of a printing forme
US5816164A (en) * 1994-04-20 1998-10-06 Heidelberger Druckmaschinen Ag Method and apparatus for monitoring image formation on a printing form

Also Published As

Publication number Publication date
FR2043024A5 (en) 1971-02-12
DE2016811A1 (en) 1970-10-15
DE2016811C3 (en) 1978-08-10
BE748591A (en) 1970-09-16
JPS4826778B1 (en) 1973-08-15
DE2016811B2 (en) 1977-12-15
US3656947A (en) 1972-04-18

Similar Documents

Publication Publication Date Title
GB1311514A (en) Electrophotography
GB1496815A (en) Apparatus for forming two colour copy from single colour document
GB1309644A (en) Multi-colour electrophotographic process
GB1496961A (en) Signal amplification by illumination of a partially developed electrostatic latent image
GB1374619A (en) Electrophotographic process
GB1451345A (en) Photographic colour diffusion transfer product and method of manufacture
GB1331870A (en) Electrophotographic apparatus for reproduction of multicoloured originals
JPS5391743A (en) Image formation process
GB1456544A (en) Electrographic method and apparatus
GB1340947A (en) Electrophotographic process
US3129099A (en) Method of gravure reproduction
JPS5687031A (en) Photographic printing method and original plate for printing used in execution of this method
JPS5349436A (en) Picture density control method for electronic copier
JPS5642242A (en) Electrophotographic method
GB1277213A (en) A process for the production of negative or positive continuous tone or screened images thereof
US2160716A (en) Diaphragm for lenticulated films
GB1467774A (en) Process for forming vesicular photographic image
GB681212A (en) Improvements in or relating to photomechanical reproduction
US1865186A (en) Color photography
GB1191019A (en) Xerographic Recording Apparatus
US3779755A (en) Photographic process
GB1316499A (en) Colour reproduction apparatus
JPS5340526A (en) Electrophotographic copy method
GB1317273A (en) Electrophotography
JPS572046A (en) Multicolor copying method

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee