GB1328318A - Electrophotographic process - Google Patents

Electrophotographic process

Info

Publication number
GB1328318A
GB1328318A GB4066371A GB4066371A GB1328318A GB 1328318 A GB1328318 A GB 1328318A GB 4066371 A GB4066371 A GB 4066371A GB 4066371 A GB4066371 A GB 4066371A GB 1328318 A GB1328318 A GB 1328318A
Authority
GB
United Kingdom
Prior art keywords
area
toner
developed
region
charge image
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
GB4066371A
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 GB1328318A publication Critical patent/GB1328318A/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
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/12—Recording members for multicolour processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102—Electrically charging radiation-conductive surface

Abstract

1328318 Colour electro-photography FUJI PHOTO FILM CO Ltd 31 Aug 1971 [28 Aug 1970] 40663/71 Heading G2H A dye-sensitised photo-conductive member 12 of extended spectral sensitivity and having the property of remaining persistently conductive after exposure to light in one region but only momentarily conductive during exposure in a second region is charged and exposed using light within both regions to an original having an area 32 which is opaque to both regions and an area 33 which is opaque only to said one region, the resulting charge image (corresponding to area 32) is developed with black or coloured toner, the developed member (which still bears a conductivity image complementary to area 33) is recharged to produce a charge image (corresponding to areas 32 and 33, or only area 33 if the first toner includes an anticharging agent) and the second charge image is developed with toner visibly distinct from the first toner. Wet or dry development may be used in either stage. Two wet developments may be effected without intermediate drying.
GB4066371A 1970-08-28 1971-08-31 Electrophotographic process Expired GB1328318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45075319A JPS4917531B1 (en) 1970-08-28 1970-08-28

Publications (1)

Publication Number Publication Date
GB1328318A true GB1328318A (en) 1973-08-30

Family

ID=13572804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4066371A Expired GB1328318A (en) 1970-08-28 1971-08-31 Electrophotographic process

Country Status (7)

Country Link
US (1) US3775106A (en)
JP (1) JPS4917531B1 (en)
BE (1) BE771855A (en)
CA (1) CA946465A (en)
CH (1) CH577190A5 (en)
DE (1) DE2142804A1 (en)
GB (1) GB1328318A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146828U (en) * 1974-05-20 1975-12-05
US4250239A (en) * 1977-06-09 1981-02-10 Ricoh Company, Ltd. Color electrostatographic process and material
JPS6028351B2 (en) * 1977-10-13 1985-07-04 株式会社リコー Two-color electrophotographic copying device
US4335194A (en) * 1978-02-20 1982-06-15 Ricoh Company, Ltd. Two color electrophotographic process and material
US4310610A (en) * 1978-04-27 1982-01-12 Ricoh Company, Ltd. Two color electrostatographic process
JPS6032192B2 (en) * 1978-11-29 1985-07-26 株式会社リコー 3-color electrophotographic copying method
US4349268A (en) * 1979-06-28 1982-09-14 Konishiroku Photo Industry Co., Ltd. Electrostatic image-forming process and an apparatus therefor
JPS5891468A (en) * 1981-11-27 1983-05-31 Ishihara Sangyo Kaisha Ltd Electrophotographic method
DE3486297T2 (en) * 1983-10-03 1994-07-14 Konishiroku Photo Ind Multiple image reproduction process.
USRE36304E (en) * 1983-10-03 1999-09-14 Konica Corporation Multiplex image reproducing method
US5183717A (en) * 1990-08-03 1993-02-02 Eastman Kodak Company Field-enhanced charge injection amplification
US5700611A (en) * 1995-12-07 1997-12-23 Eastman Kodak Company Method for forming overlapping toner images

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1303188B (en) * 1961-12-28 Research Laboratories Of Australia Ltd
BE655347A (en) * 1963-11-05
US3355288A (en) * 1963-11-19 1967-11-28 Australia Res Lab Electrostatic printing method and apparatus
US3576624A (en) * 1967-10-17 1971-04-27 Australia Res Lab Electrostatic printing method employing a pigmented light filter

Also Published As

Publication number Publication date
US3775106A (en) 1973-11-27
BE771855A (en) 1971-12-31
CA946465A (en) 1974-04-30
DE2142804A1 (en) 1972-03-02
CH577190A5 (en) 1976-06-30
JPS4917531B1 (en) 1974-05-01

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Legal Events

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