GB1361810A - Process for charging electrophotographic materials - Google Patents

Process for charging electrophotographic materials

Info

Publication number
GB1361810A
GB1361810A GB4356571A GB4356571A GB1361810A GB 1361810 A GB1361810 A GB 1361810A GB 4356571 A GB4356571 A GB 4356571A GB 4356571 A GB4356571 A GB 4356571A GB 1361810 A GB1361810 A GB 1361810A
Authority
GB
United Kingdom
Prior art keywords
charging
sept
layer
electrophotographic materials
charging electrophotographic
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
GB4356571A
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 GB1361810A publication Critical patent/GB1361810A/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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1361810 Electro-static charging FUJI PHOTO FILM CO Ltd 17 Sept 1971 [18 Sept 1970] 43565/71 Heading G2H A photo-conductive layer 11 on an insulating substrate 12 is simultaneously exposed to corona discharges 40, 41 of opposite polarities, and before or during the charging is uniformly exposed to light (pref. U. V.) via substrate 12 to provide a conductive portion 44. As shown, an n-type photoconductor 11 is negatively charged at 40 and positively charged at 41, charge migration through portion 44 producing a resultant negative charge on the surface of layer 11. The process removes the need for an earth connection during charging. More than two discharge devices may be used, comprising wires, needles or ribbons.
GB4356571A 1970-09-18 1971-09-17 Process for charging electrophotographic materials Expired GB1361810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8143170 1970-09-18

Publications (1)

Publication Number Publication Date
GB1361810A true GB1361810A (en) 1974-07-30

Family

ID=13746176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4356571A Expired GB1361810A (en) 1970-09-18 1971-09-17 Process for charging electrophotographic materials

Country Status (1)

Country Link
GB (1) GB1361810A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee