GB1281149A - Method of electrophotography - Google Patents

Method of electrophotography

Info

Publication number
GB1281149A
GB1281149A GB23182/71A GB2318271A GB1281149A GB 1281149 A GB1281149 A GB 1281149A GB 23182/71 A GB23182/71 A GB 23182/71A GB 2318271 A GB2318271 A GB 2318271A GB 1281149 A GB1281149 A GB 1281149A
Authority
GB
United Kingdom
Prior art keywords
photo
conductive layer
web
charge image
conductive
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
GB23182/71A
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 Ltd
Original Assignee
Rank Xerox 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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1281149A publication Critical patent/GB1281149A/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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/226—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 where the image is formed on a dielectric layer covering the photoconductive layer
    • G03G15/227—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 where the image is formed on a dielectric layer covering the photoconductive layer the length of the inner surface of the dielectric layer being greater than the length of the outer surface of the photoconductive layer
    • 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
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G13/24—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20 whereby at least two steps are performed simultaneously
    • 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

1281149 Electrophotography RANK XEROX Ltd 19 April 1971 [7 March 1970] 23182/71 Heading G2H The surfaces of a transparent insulative web 4 are oppositely charged by means of corona devices 7 and 8, the web is brought into contact with an earthed photo-conductive layer 3, and the photo-conductive layer is imagewise light exposed line-by-line while the surface of the web not in contact with the photo-conductive layer is subjected to a corona device 9 of a potential opposite in sign to that of the charge already on the said surface so as to form a charge image on said surface. The charge image may be developed on the web before or after stripping from the photoconductive layer. The photo-conductive layer may be subjected to uniform light exposure before stripping. The charge image may alternatively be developed after transfer to another surface. The photo-conductive layer may be exposed through a conductive web (as shown) or through a transparent conductive backing for the photo -conductive layer. The dark resistivity of the photo-conductive layer may be 10<SP>5</SP> ohm. cm for a contact time of 0.01 seconds. The web may be 10-100 microns thick.
GB23182/71A 1970-03-07 1971-04-19 Method of electrophotography Expired GB1281149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1902770 1970-03-07

Publications (1)

Publication Number Publication Date
GB1281149A true GB1281149A (en) 1972-07-12

Family

ID=11987966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23182/71A Expired GB1281149A (en) 1970-03-07 1971-04-19 Method of electrophotography

Country Status (5)

Country Link
US (1) US3719481A (en)
CA (1) CA948693A (en)
DE (1) DE2110553A1 (en)
FR (1) FR2084462A5 (en)
GB (1) GB1281149A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936337A (en) * 1972-08-04 1974-04-04
US4097277A (en) * 1973-01-31 1978-06-27 Canon Kabushiki Kaisha Photosensitive member having layer of vinyl carbazole polymer containing antimony chalcogen compound of antimony and sulfur
US4021106A (en) * 1973-03-21 1977-05-03 Bell & Howell Company Apparatus for electrostatic reproduction using plural charges
JPS5030531A (en) * 1973-06-25 1975-03-26
US3992204A (en) * 1973-08-06 1976-11-16 Minnesota Mining And Manufacturing Company Method and medium for producing electrostatic charge patterns
US4049344A (en) * 1975-03-10 1977-09-20 Xerox Corporation Electrostatic imaging system
US4106933A (en) * 1975-06-18 1978-08-15 Minnesota Mining And Manufacturing Company Piezoelectric method and medium for producing electrostatic charge patterns
US4410616A (en) * 1982-05-10 1983-10-18 Xerox Corporation Multi-layered ambipolar photoresponsive devices for electrophotography
US4809032A (en) * 1986-12-10 1989-02-28 Kabushiki Kaisha Toshiba Printing apparatus
US5777576A (en) * 1991-05-08 1998-07-07 Imagine Ltd. Apparatus and methods for non impact imaging and digital printing
US5157423A (en) * 1991-05-08 1992-10-20 Cubital Ltd. Apparatus for pattern generation on a dielectric substrate
JP3773899B2 (en) * 2000-08-30 2006-05-10 独立行政法人科学技術振興機構 Magnetic semiconductor material and manufacturing method thereof
JP2008216790A (en) * 2007-03-06 2008-09-18 Ricoh Co Ltd Process cartridge and image forming apparatus
BRPI0819522A2 (en) * 2007-12-21 2015-05-26 3M Innovative Properties Co "change of charge with the use of ultraviolet radiation"

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240596A (en) * 1961-07-28 1966-03-15 Ibm Electrophotographic processes and apparatus
US3147679A (en) * 1961-12-18 1964-09-08 Ibm Electrostatic image transfer processes and apparatus therefor
GB1153586A (en) * 1965-06-28 1969-05-29 Rank Xerox Ltd Formation of Induced Electrostatic Latent Images

Also Published As

Publication number Publication date
FR2084462A5 (en) 1971-12-17
US3719481A (en) 1973-03-06
DE2110553A1 (en) 1971-09-30
CA948693A (en) 1974-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee