GB1439704A - Electrophotographic printing system - Google Patents

Electrophotographic printing system

Info

Publication number
GB1439704A
GB1439704A GB4415273A GB4415273A GB1439704A GB 1439704 A GB1439704 A GB 1439704A GB 4415273 A GB4415273 A GB 4415273A GB 4415273 A GB4415273 A GB 4415273A GB 1439704 A GB1439704 A GB 1439704A
Authority
GB
United Kingdom
Prior art keywords
layer
sensitive
electro
charge
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
GB4415273A
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP9436172A external-priority patent/JPS5025233A/ja
Priority claimed from JP9436072A external-priority patent/JPS4953044A/ja
Priority claimed from JP48008105A external-priority patent/JPS5242383B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB1439704A publication Critical patent/GB1439704A/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
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/06—Eliminating residual charges from a reusable imaging member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

1439704 Electro-photography MITSUBISHI DENKI KK 20 Sept 1973 [20 Sept 1972 (2) 18 Jan 1973] 44152/73 Heading G2H In an apparatus for electro-photographic printing, an electro-photographically sensitive substrate comprised of a charge maintaining layer and a photo-conductive sensitive layer is charged to form an electrical charge image of effectively single polarity corresponding to a light image exposed on the electro-photographically sensitive substrate, the charge image is transferred to a recording substrate, and a conductive member is brought into contact with the surface of the electrophotographically sensitive substrate to transfer residual charge thereon to erase the residual potential or adjust the residual potential to a predetermined value. The conductive roller may comprise a metal roller covered with a low resistance paper, and is connected to either a bias voltage or to earth. The charge maintaining layer may be an insulating layer alone or combined in a composite layer comprising a photo-conductive layer sensitive to radiation in a range outside that of the visible light range, e.g. sensitive to ultraviolet light, to which it may be exposed immediately prior to contacting with the conductive member to aid removal of residual charge. A number of different layer combinations are described.
GB4415273A 1972-09-20 1973-09-20 Electrophotographic printing system Expired GB1439704A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9436172A JPS5025233A (en) 1972-09-20 1972-09-20
JP9436072A JPS4953044A (en) 1972-09-20 1972-09-20
JP48008105A JPS5242383B2 (en) 1973-01-18 1973-01-18

Publications (1)

Publication Number Publication Date
GB1439704A true GB1439704A (en) 1976-06-16

Family

ID=27277878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4415273A Expired GB1439704A (en) 1972-09-20 1973-09-20 Electrophotographic printing system

Country Status (2)

Country Link
DE (1) DE2347422C3 (en)
GB (1) GB1439704A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259003A (en) * 1979-08-06 1981-03-31 Savin Corporation Imaging surface discharge and cleaning apparatus for electrophotographic copier

Also Published As

Publication number Publication date
DE2347422A1 (en) 1974-04-11
DE2347422B2 (en) 1980-02-28
DE2347422C3 (en) 1980-10-23

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Legal Events

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