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GB1366715A - Corona device - Google Patents

Corona device

Info

Publication number
GB1366715A
GB1366715A GB3897271A GB3897271A GB1366715A GB 1366715 A GB1366715 A GB 1366715A GB 3897271 A GB3897271 A GB 3897271A GB 3897271 A GB3897271 A GB 3897271A GB 1366715 A GB1366715 A GB 1366715A
Authority
GB
United Kingdom
Prior art keywords
shield
electrode
aug
charge
source
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
GB3897271A
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 GB1366715A publication Critical patent/GB1366715A/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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

1366715 Discharge apparatus EASTMAN KODAK CO 19 Aug 1971 [26 Aug 1970] 38972/71 Heading H1X An ion generator, e.g. for discharging static from or for modifying the charge on light sensitive film, comprises a corona discharge electrode 24 within a conductive shield 15 having an elongated opening 16 and a focusing electrode 26 between electrode 24 and opening 16 so that no light can pass directly from the former to the latter. The relative potentials, which can be derived from an A.C. or D.C. source, of the shield 15, electrodes 24, 25 and 26 are so arranged as to direct the ions through a grid 21 on to the material W to be treated. A support 23 is connected to a source of potential if it is desired to charge the material and to earth if it is to be discharged. A supply of gas under pressure can be connected to the inside of shield 15 to promote ion flow.
GB3897271A 1970-08-26 1971-08-19 Corona device Expired GB1366715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6694770A 1970-08-26 1970-08-26

Publications (1)

Publication Number Publication Date
GB1366715A true GB1366715A (en) 1974-09-11

Family

ID=22072751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3897271A Expired GB1366715A (en) 1970-08-26 1971-08-19 Corona device

Country Status (6)

Country Link
US (1) US3660656A (en)
AU (1) AU471325B2 (en)
BR (1) BR7105434D0 (en)
CA (1) CA930012A (en)
FR (1) FR2106056A5 (en)
GB (1) GB1366715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150764A (en) * 1983-11-30 1985-07-03 Xerox Corp Corona charging apparatus and method
GB2162697A (en) * 1984-06-30 1986-02-05 Cecil Alfred Laws Slot ionizer

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1373235A (en) * 1970-10-29 1974-11-06 Repco Res Pty Ltd Charging of electrophotographic surfaces
US3896310A (en) * 1971-06-30 1975-07-22 Diagnostic Instr Inc Field control in imaging systems
US3850519A (en) * 1973-01-12 1974-11-26 Xerox Corp Xerographic image transfer apparatus
FR2228620B1 (en) * 1973-05-11 1978-11-17 Electroprint Inc
US3880514A (en) * 1973-09-14 1975-04-29 Coulter Information Systems Ion producing source for electrostatic recording apparatus
JPS5525066B2 (en) * 1974-10-30 1980-07-03
NL7507902A (en) * 1975-07-02 1977-01-04 Stork Brabant Bv METHOD AND DEVICE FOR TRANSFER PRINTING.
JPS5343537A (en) * 1976-10-01 1978-04-19 Olympus Optical Co Ltd Corona charger
US4174170A (en) * 1976-12-16 1979-11-13 Minolta Camera Kabushiki Kaisha Conductive toner transfer photocopying machine
CH626706A5 (en) * 1977-03-10 1981-11-30 Fleck Carl M Device for producing ions
JPS5928430Y2 (en) * 1977-06-20 1984-08-16 コニカ株式会社 corona discharger
US4255777A (en) * 1977-11-21 1981-03-10 Exxon Research & Engineering Co. Electrostatic atomizing device
AT354617B (en) * 1978-07-06 1980-01-25 Fleck Carl M Dr DEVICE FOR GENERATING IONS
DE2849222A1 (en) * 1978-11-13 1980-05-22 Hoechst Ag METHOD FOR ELECTROSTATICALLY CHARGING A DIELECTRIC LAYER AND DEVICE FOR CARRYING OUT THE METHOD
US4564282A (en) * 1982-11-15 1986-01-14 Xerox Corporation Corona charging device
FR2593383B1 (en) * 1986-01-29 1990-07-06 Technomed Int Sa HIGH FREQUENCY SHOCK WAVE GENERATING APPARATUS HAVING A SCREEN REDUCING ELECTRIC LEAKS AND ITS USE FOR THE DESTRUCTION OF TARGETS SUCH AS CONCRETE TISSUES, ESPECIALLY KIDNEY CALCULATIONS
US4775915A (en) * 1987-10-05 1988-10-04 Eastman Kodak Company Focussed corona charger
US4910400A (en) * 1987-10-23 1990-03-20 Eastman Kodak Company Programmable focussed corona charger
FR2690302A1 (en) * 1992-04-17 1993-10-22 Kodak Pathe Cleaning device for strip of unexposed photosensitive product.
US5432454A (en) * 1994-03-10 1995-07-11 Eastman Kodak Company Apparatus and method to control free charge on moving webs
US6624413B1 (en) * 2002-11-12 2003-09-23 Qc Electronics, Inc. Corona treatment apparatus with segmented electrode
GB2406222B (en) * 2003-09-22 2007-03-21 Meech Static Eliminators Ltd Electrical ioniser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879395A (en) * 1955-06-08 1959-03-24 Haloid Xerox Inc Charging device
US3038073A (en) * 1959-03-13 1962-06-05 Rca Corp Electrostatic charging
US3409768A (en) * 1967-04-03 1968-11-05 Eastman Kodak Co Light lock for air ionizer to shield photosensitive material
US3557367A (en) * 1967-09-01 1971-01-19 Xerox Corp Method and apparatus for increasing the efficiency of corona charging of a photoconductor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150764A (en) * 1983-11-30 1985-07-03 Xerox Corp Corona charging apparatus and method
US4762997A (en) * 1983-11-30 1988-08-09 Xerox Corporation Fluid jet assisted ion projection charging method
GB2162697A (en) * 1984-06-30 1986-02-05 Cecil Alfred Laws Slot ionizer

Also Published As

Publication number Publication date
US3660656A (en) 1972-05-02
CA930012A (en) 1973-07-10
BR7105434D0 (en) 1973-04-10
FR2106056A5 (en) 1972-04-28
AU3270871A (en) 1973-03-01
AU471325B2 (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