GB1369154A - Charging apparatus for use in xerography - Google Patents

Charging apparatus for use in xerography

Info

Publication number
GB1369154A
GB1369154A GB228672A GB228672A GB1369154A GB 1369154 A GB1369154 A GB 1369154A GB 228672 A GB228672 A GB 228672A GB 228672 A GB228672 A GB 228672A GB 1369154 A GB1369154 A GB 1369154A
Authority
GB
United Kingdom
Prior art keywords
wire
corona
insulating member
jan
cut
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
GB228672A
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
Priority claimed from JP149571A external-priority patent/JPS519580B1/ja
Application filed by Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1369154A publication Critical patent/GB1369154A/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)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1369154 Corona charging apparatus RANK XEROX Ltd 18 Jan 1972 [20 Jan 1971] 2286/71 Heading H1X [Also in Division G2] A corona discharge apparatus, which in use is employed to charge a photoconductive member 1, comprises at least one corona wire 5, a conductive shield 6 or 20 and an insulating member 9 or 24, with means whereby the distance from the wire 5 to the insulating member can be varied. For example, the insulating member 24 can be brought in to surround the wire 5, and cut off the corona discharge without disconnection of the high-voltage supply feeding it. Alternatively an array of wires 5 and shields 6 may be mounted to revolve about an axis 7 within an apertured insulating casing 9, so that as each wire 5 approaches the lip of the casing its discharge is quenched, and the photoconductive member 1 receives an even exposure from the corona wires without any need to cut off the current to them while they are on that part of their path which is remote from the member 1.
GB228672A 1971-01-20 1972-01-18 Charging apparatus for use in xerography Expired GB1369154A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP149571A JPS519580B1 (en) 1971-01-20 1971-01-20
DE19722202450 DE2202450A1 (en) 1971-01-20 1972-01-19 CORONA DISCHARGE DEVICE

Publications (1)

Publication Number Publication Date
GB1369154A true GB1369154A (en) 1974-10-02

Family

ID=25762590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB228672A Expired GB1369154A (en) 1971-01-20 1972-01-18 Charging apparatus for use in xerography

Country Status (2)

Country Link
DE (1) DE2202450A1 (en)
GB (1) GB1369154A (en)

Also Published As

Publication number Publication date
DE2202450A1 (en) 1974-04-18

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Legal Events

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