GB1323599A - Electric charging device for electrophotography - Google Patents

Electric charging device for electrophotography

Info

Publication number
GB1323599A
GB1323599A GB5266770A GB5266770A GB1323599A GB 1323599 A GB1323599 A GB 1323599A GB 5266770 A GB5266770 A GB 5266770A GB 5266770 A GB5266770 A GB 5266770A GB 1323599 A GB1323599 A GB 1323599A
Authority
GB
United Kingdom
Prior art keywords
needles
needle
charging
nov
holding means
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
GB5266770A
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 GB1323599A publication Critical patent/GB1323599A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • 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
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/47—Generating plasma using corona discharges
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/47—Generating plasma using corona discharges
    • H05H1/477—Segmented electrodes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/02—Arrangements for laying down a uniform charge
    • G03G2215/026—Arrangements for laying down a uniform charge by coronas
    • G03G2215/028—Arrangements for laying down a uniform charge by coronas using pointed electrodes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1323599 Corona charging apparatus RANK XEROX Ltd 5 Nov 1970 [8 Nov 1969] 52677/70 Heading H1X [Also in Division G2] A plurality of parallel needle electrodes 104 on a carrier member 105 each have a frictional or releasable holding means to enable each needle to be moved axially for the charging of a curved surface 102. The holding means may be a rubber bush (Fig. 6a), leaf spring (Fig. 6b), a resilient portion of the carrier member (Fig. 6c), or an electromagnet (Fig. 7). A spaced auxiliary carrier plate (Fig. 8) may help to maintain the needles parallel. An earthed cylindrical guard round alternate needles (Fig. 9) may be fixed or movable with the respective needle. Charging may be effected by scanning or with the needles stationary, the arrangement of the needles being two or three dimensional.
GB5266770A 1969-11-08 1970-11-05 Electric charging device for electrophotography Expired GB1323599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44089423A JPS4825942B1 (en) 1969-11-08 1969-11-08

Publications (1)

Publication Number Publication Date
GB1323599A true GB1323599A (en) 1973-07-18

Family

ID=13970234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5266770A Expired GB1323599A (en) 1969-11-08 1970-11-05 Electric charging device for electrophotography

Country Status (5)

Country Link
US (1) US3655966A (en)
JP (1) JPS4825942B1 (en)
CA (1) CA922359A (en)
DE (1) DE2054710A1 (en)
GB (1) GB1323599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190798A (en) * 1986-05-16 1987-11-25 Sharp Kk Positioning charging device for image forming

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937541B1 (en) * 1970-12-30 1974-10-09
US3937960A (en) * 1972-02-22 1976-02-10 Rank Xerox, Ltd. Charging device for electrophotography
US3811048A (en) * 1972-09-12 1974-05-14 Xerox Corp Electrophotographic charging apparatus
JPS5353324A (en) * 1976-10-25 1978-05-15 Sharp Corp Multi-stylus electrodes
DE3045259C2 (en) * 1980-12-01 1982-09-09 Fa. Carl Freudenberg, 6940 Weinheim Device for treating the thermoplastic surface of molded bodies by corona discharge
US4507373A (en) * 1983-10-03 1985-03-26 Eastman Kodak Company Method and apparatus for uniformly charging a surface
US4772788A (en) * 1985-12-25 1988-09-20 Nippon Paint Co., Ltd. Corona discharge treating system
JPH03189129A (en) * 1989-12-19 1991-08-19 Nippon Paint Co Ltd Corona discharge treatment device
NL1018613C2 (en) * 2001-07-23 2003-01-27 Oce Tech Bv Device for charging a substrate and an image-forming device comprising such a device.
KR20130143021A (en) * 2010-12-28 2013-12-30 가부시키가이샤 고가네이 Ion generation device
US9354539B1 (en) * 2015-04-29 2016-05-31 Kabushiki Kaisha Toshiba Image forming apparatus with holding unit for charging electrode
EP3435745A1 (en) * 2017-07-27 2019-01-30 FGM Fritz Gradert Maschinenbau GmbH + Co. KG Electrode for treating surfaces

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864756A (en) * 1955-06-08 1958-12-16 Modern Plastic Machinery Corp Method and apparatus for the treatment of plastic materials
AT302636B (en) * 1966-01-24 1972-10-25 Dietrich Erben Device for treating the surface of thin-walled plastic or metal surfaces or the like.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190798A (en) * 1986-05-16 1987-11-25 Sharp Kk Positioning charging device for image forming
GB2190798B (en) * 1986-05-16 1990-07-18 Sharp Kk Image formation cartridge

Also Published As

Publication number Publication date
CA922359A (en) 1973-03-06
US3655966A (en) 1972-04-11
DE2054710A1 (en) 1971-05-19
JPS4825942B1 (en) 1973-08-02

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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