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GB1211442A - Charging apparatus - Google Patents

Charging apparatus

Info

Publication number
GB1211442A
GB1211442A GB05532/68A GB1553268A GB1211442A GB 1211442 A GB1211442 A GB 1211442A GB 05532/68 A GB05532/68 A GB 05532/68A GB 1553268 A GB1553268 A GB 1553268A GB 1211442 A GB1211442 A GB 1211442A
Authority
GB
United Kingdom
Prior art keywords
electrode
ions
negative
produce
plate
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
GB05532/68A
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 GB1211442A publication Critical patent/GB1211442A/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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

1,211,442. Electrostatic charging apparatus. RANK XEROX Ltd. April 1, 1968 [April 6, 1967], No.15532/68. Heading G2H. Electrostatic charging apparatus for applying a negative charge to a xerographic plate 11 having a photo-conductive surface 12 on a conductive substrate 13 comprises a direct current source 14, an elongated corona discharge electrode 17 connected to the negative terminal of the source 14 and a field generator 16 which produces a field perpendicular to a line between the corona electrode and the insulating surface. The potential applied to electrode 17 causes positive ions surrounding the electrode to move towards the electrode to ionize neutral gas molecules to produce additional ions which are accelerated to produce more ions. The negative ions and electrons produced are repelled by the negative potential on the electrodes and migrate towards plate 11 to produce a uniform negative charge on the plate 11. The alternating current applied to the electrode produces a circular magnetic field around the electrode the direction of which depends on the direction of current Figs.2A and 2B. The negative ions and electrons are subject to fibres C y and C x , such that they tend to disperse in a flame along the length of the electrode. In another embodiment an alternating current source 22 Fig.3 is connected to field generators 26 which produce an alternating electric field between corona wire 27 and plate 23 parallel to the wire 27. In a further embodiment, Fig.4 (not shown) two alternating current sources (28, 29) are provided the source (29) being connected to field generators (32).
GB05532/68A 1967-04-06 1968-04-01 Charging apparatus Expired GB1211442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62899567A 1967-04-06 1967-04-06

Publications (1)

Publication Number Publication Date
GB1211442A true GB1211442A (en) 1970-11-04

Family

ID=24521162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05532/68A Expired GB1211442A (en) 1967-04-06 1968-04-01 Charging apparatus

Country Status (3)

Country Link
US (1) US3433948A (en)
FR (1) FR1564157A (en)
GB (1) GB1211442A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3492476A (en) * 1968-03-18 1970-01-27 Xerox Corp Electrostatic charging device utilizing both a.c. and d.c. fields
US3678337A (en) * 1968-07-11 1972-07-18 Kurt Grauvogel Environmental control apparatus
US3845307A (en) * 1973-02-22 1974-10-29 Xerox Corp Combined corona and luminescent discharge
US4022527A (en) * 1975-05-29 1977-05-10 Addressograph-Multigraph Corporation Ion modulator having independently controllable bias electrode
CN109375450A (en) * 2018-12-05 2019-02-22 浙江大学昆山创新中心 A kind of device and method of manufacturing cycle polarization domain reverse crystal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885556A (en) * 1955-08-01 1959-05-05 Haloid Xerox Inc Simultaneous charging device and method
US3013154A (en) * 1958-11-14 1961-12-12 High Voltage Engineering Corp Method of and apparatus for irradiating matter with high energy electrons
US3109931A (en) * 1960-06-20 1963-11-05 Gen Electric Method and apparatus for uniformly irradiating an object with electrons

Also Published As

Publication number Publication date
DE1772154B2 (en) 1976-12-23
DE1772154A1 (en) 1971-01-28
US3433948A (en) 1969-03-18
FR1564157A (en) 1969-04-18

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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