GB1374557A - Corona charging apparatus - Google Patents

Corona charging apparatus

Info

Publication number
GB1374557A
GB1374557A GB2514573A GB2514573A GB1374557A GB 1374557 A GB1374557 A GB 1374557A GB 2514573 A GB2514573 A GB 2514573A GB 2514573 A GB2514573 A GB 2514573A GB 1374557 A GB1374557 A GB 1374557A
Authority
GB
United Kingdom
Prior art keywords
wire
electrode
corona charging
potential
control electrode
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
GB2514573A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1374557A publication Critical patent/GB1374557A/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

1374557 Corona charging device EASTMAN KODAK CO 25 May 1973 [25 May 1972] 25145/73 Heading G2H The device comprises a flexible wire 10 depending freely from a support 12 with its free end 13 spaced from a conductive control electrode 17 which, in use, is positioned over a dielectric surface S to be charged. The wire 10 is sufficiently flexible and its spacing from the electrode 17 is such, that it is deflectable when a potential is applied to it so that it oscillates randomly to uniformly charge the whole surface S. The control electrode 17 may be a grid 18 or a closed loop (30) of conductive material. The fixed end 11 of the wire 10 is connected to a high voltage source 15 and the electrode 17 is electrically biased, either by connection to an external source (not shown) or by being connected to ground via Zener diode 20, to the desired level of charge potential of the surface S.
GB2514573A 1972-05-25 1973-05-25 Corona charging apparatus Expired GB1374557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25666572A 1972-05-25 1972-05-25

Publications (1)

Publication Number Publication Date
GB1374557A true GB1374557A (en) 1974-11-20

Family

ID=22973104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2514573A Expired GB1374557A (en) 1972-05-25 1973-05-25 Corona charging apparatus

Country Status (6)

Country Link
US (1) US3729649A (en)
JP (1) JPS4951952A (en)
BE (1) BE800084A (en)
CA (1) CA982211A (en)
DE (1) DE2326547C3 (en)
GB (1) GB1374557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117185A (en) * 1982-03-05 1983-10-05 Tdk Electronics Co Ltd Charging apparatus for an electrostatic copying machine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937541B1 (en) * 1970-12-30 1974-10-09
DE2236083C3 (en) * 1972-07-22 1979-08-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Process for the elimination of structured charges on highly insulating foils
US4041312A (en) * 1975-04-23 1977-08-09 A. B. Dick/Scott Apparatus for electrostatically charging an electrophotographic film
US4363072A (en) * 1980-07-22 1982-12-07 Zeco, Incorporated Ion emitter-indicator
US4507373A (en) * 1983-10-03 1985-03-26 Eastman Kodak Company Method and apparatus for uniformly charging a surface
US4638397A (en) * 1984-12-21 1987-01-20 Xerox Corporation Self-biased scorotron and control therefor
US5245502A (en) * 1990-11-23 1993-09-14 Xerox Corporation Semi-conductor corona generator for production of ions to charge a substrate
CA2076758A1 (en) * 1990-12-25 1992-06-26 Lev Alexandrovich Pokhmelnykh Device for producing space charge in atmosphere
US8890070B2 (en) * 2010-12-28 2014-11-18 Koganei Corporation Object neutralization with flexible discharge electrode
JP5830414B2 (en) * 2012-03-08 2015-12-09 株式会社コガネイ Ion generator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL294832A (en) * 1962-07-20
AU412769B2 (en) * 1965-08-30 1971-04-28 The Commonwealth Of Australia Improved control of xerographic images
AU412176B2 (en) * 1967-05-15 1971-04-06 The Commonwealth Of Australia Charging xerographic images
JPS4829182B1 (en) * 1970-01-29 1973-09-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117185A (en) * 1982-03-05 1983-10-05 Tdk Electronics Co Ltd Charging apparatus for an electrostatic copying machine

Also Published As

Publication number Publication date
DE2326547C3 (en) 1975-07-31
BE800084A (en) 1973-11-26
DE2326547A1 (en) 1973-11-29
JPS4951952A (en) 1974-05-20
DE2326547B2 (en) 1974-12-05
CA982211A (en) 1976-01-20
US3729649A (en) 1973-04-24

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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