GB1379467A - Electrophotographic charging - Google Patents

Electrophotographic charging

Info

Publication number
GB1379467A
GB1379467A GB3482872A GB3482872A GB1379467A GB 1379467 A GB1379467 A GB 1379467A GB 3482872 A GB3482872 A GB 3482872A GB 3482872 A GB3482872 A GB 3482872A GB 1379467 A GB1379467 A GB 1379467A
Authority
GB
United Kingdom
Prior art keywords
layer
charged
corona
corona discharge
july
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
GB3482872A
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 GB1379467A publication Critical patent/GB1379467A/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
    • G03G13/02—Sensitising, i.e. laying-down a uniform charge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Elimination Of Static Electricity (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1379467 Electro-photographic apparatus FUJI PHOTO FILM CO Ltd 25 July 1972 [26 July 1971] 34828/72 Heading G2N Apparatus for charging electro-photographic material comprising an insulating support and a photo-conductive insulating layer directly coiled thereon comprises a light source for rendering the layer conductive and first and second corona discharge means for successively charging the layer after the illumination stage with corona discharge ions of opposite polarity. As shown, the layer 11 may be illuminated by a lamp 38, Fig. 3 charged with a corona device 36 with the corona wire in longitudinal alignment with feed of the layer 11 in web form - and then charged with a device 31 placed across the layer and finally charged with a device identical to the first device 36. In a further embodiment, Fig. 4, both corona discharge devices 41, 43 are placed across the web feed.
GB3482872A 1971-07-26 1972-07-25 Electrophotographic charging Expired GB1379467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5583571A JPS5334492B1 (en) 1971-07-26 1971-07-26

Publications (1)

Publication Number Publication Date
GB1379467A true GB1379467A (en) 1975-01-02

Family

ID=13010024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3482872A Expired GB1379467A (en) 1971-07-26 1972-07-25 Electrophotographic charging

Country Status (4)

Country Link
US (1) US3843885A (en)
JP (1) JPS5334492B1 (en)
DE (1) DE2236716A1 (en)
GB (1) GB1379467A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248519A (en) * 1976-10-27 1981-02-03 Xerox Corporation Charge control system for xerographic machines
US4105321A (en) * 1976-10-27 1978-08-08 Xerox Corporation Illuminated charge control system for xerographic machines
US4265998A (en) * 1979-11-13 1981-05-05 International Business Machines Corporation Electrophotographic photoreceptive background areas cleaned by backcharge process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955938A (en) * 1955-08-01 1960-10-11 Haloid Xerox Inc Xerography
GB1241439A (en) * 1967-10-20 1971-08-04 Katsuragawa Denki Kk Method of electrophotography
US3715640A (en) * 1971-04-14 1973-02-06 Fuji Photo Film Co Ltd Corona charging process and apparatus in electrophotography

Also Published As

Publication number Publication date
DE2236716A1 (en) 1973-02-08
US3843885A (en) 1974-10-22
JPS5334492B1 (en) 1978-09-21

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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