GB1463712A - Electrostatic charging arrangement - Google Patents

Electrostatic charging arrangement

Info

Publication number
GB1463712A
GB1463712A GB585974A GB585974A GB1463712A GB 1463712 A GB1463712 A GB 1463712A GB 585974 A GB585974 A GB 585974A GB 585974 A GB585974 A GB 585974A GB 1463712 A GB1463712 A GB 1463712A
Authority
GB
United Kingdom
Prior art keywords
corona
wires
field
feb
plates
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
GB585974A
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.)
Elfotec AG
Original Assignee
Elfotec AG
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 Elfotec AG filed Critical Elfotec AG
Publication of GB1463712A publication Critical patent/GB1463712A/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

1463712 Corona charging apparatus ELFOTEC AG 8 Feb 1974 [9 Feb 1973] 05859/74 Heading H1X A charging arrangement comprises a first electrode in the form of a sheet 5, a second electrode emitting corona and comprising a plurality of component electrodes 11 to 16, and fieldconnecting means 21 and 22 to provide a uniform current density over the charging area. The sheet 5, which may be of insulating material metallized on its lower surface is supported by conductive rolls 2 and 3 mounted on a chassis frame 1. Supporting walls 8 and 9 mounted on the frame 1 have holes 10 through which a wire is drawn to produce an arrangement of parallel wires 11 to 16 connected to the central conductor 17 of a cable 18 leading to one terminal of a high-voltage source, the other terminal of which is connected to the chassis frame 1. The field-correcting means 21 and 22 are plates, preferably of corona-resistant insulating material, e.g. P.T.F.E., attached by supports 23 and 24 to the walls 8 and 9. Insulating sleeves 25 intermediate the wire runs 11 to 16 provide further field-correcting means. As an addition to the plates 21 and 22, the peripheral field may be connected by making the two outermost wires 11 and 16 so thick that no corona discharge occurs at these wires.
GB585974A 1973-02-09 1974-02-08 Electrostatic charging arrangement Expired GB1463712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH193873A CH548627A (en) 1973-02-09 1973-02-09 ELECTROSTATIC CHARGER.

Publications (1)

Publication Number Publication Date
GB1463712A true GB1463712A (en) 1977-02-09

Family

ID=4222106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB585974A Expired GB1463712A (en) 1973-02-09 1974-02-08 Electrostatic charging arrangement

Country Status (5)

Country Link
US (1) US3916269A (en)
CA (1) CA1023792A (en)
CH (1) CH548627A (en)
FR (1) FR2217736B1 (en)
GB (1) GB1463712A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3258180B2 (en) * 1994-10-19 2002-02-18 シャープ株式会社 Charging device design method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163753A (en) * 1961-09-12 1964-12-29 Du Pont Process and apparatus for electrostatically applying separating and forwarding forces to a moving stream of discrete elements of dielectric material
NL294832A (en) * 1962-07-20
BE756687A (en) * 1969-11-24 1971-03-01 Ibm CORONA CHARGING DEVICE
JPS4829182B1 (en) * 1970-01-29 1973-09-07
US3811048A (en) * 1972-09-12 1974-05-14 Xerox Corp Electrophotographic charging apparatus
US3800153A (en) * 1972-12-29 1974-03-26 Xerox Corp Electrophotography charging device

Also Published As

Publication number Publication date
DE2402904A1 (en) 1974-08-29
CA1023792A (en) 1978-01-03
CH548627A (en) 1974-04-30
FR2217736B1 (en) 1976-06-25
US3916269A (en) 1975-10-28
FR2217736A1 (en) 1974-09-06
DE2402904B2 (en) 1976-04-15

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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