[go: up one dir, main page]

GB1395467A - Corona charging device with semiconductive shield - Google Patents

Corona charging device with semiconductive shield

Info

Publication number
GB1395467A
GB1395467A GB3252373A GB3252373A GB1395467A GB 1395467 A GB1395467 A GB 1395467A GB 3252373 A GB3252373 A GB 3252373A GB 3252373 A GB3252373 A GB 3252373A GB 1395467 A GB1395467 A GB 1395467A
Authority
GB
United Kingdom
Prior art keywords
charging device
corona charging
resistivity
shield
semiconductive shield
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
GB3252373A
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.)
Sperry Corp
Original Assignee
Sperry Rand Corp
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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1395467A publication Critical patent/GB1395467A/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

1395467 Electrostatic charging device SPERRY RAND CORP 9 July 1973 [26 Sept 1972] 32523/73 Heading G2H [Also in Division H1] The elongated wire electrode 18 of a corona charging device 10 is partially surrounded by an elongated shield 20 formed from a material having a moderate resistivity i.e. of the order of 10<SP>3</SP> to 10<SP>9</SP> ohm-cm. The resistivity of the shield should be less than that of the dark resistivity of the photo-conductive surface 14 to be charged by the device 10.
GB3252373A 1972-09-26 1973-07-09 Corona charging device with semiconductive shield Expired GB1395467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29228572A 1972-09-26 1972-09-26

Publications (1)

Publication Number Publication Date
GB1395467A true GB1395467A (en) 1975-05-29

Family

ID=23124022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3252373A Expired GB1395467A (en) 1972-09-26 1973-07-09 Corona charging device with semiconductive shield

Country Status (8)

Country Link
US (1) US3783283A (en)
JP (1) JPS4973139A (en)
BR (1) BR7307084D0 (en)
CA (1) CA996992A (en)
FR (1) FR2200651B1 (en)
GB (1) GB1395467A (en)
IT (1) IT993209B (en)
NL (1) NL151524B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437739A1 (en) * 1983-11-30 1985-06-05 Xerox Corp., Rochester, N.Y. FLUID JET SUPPORTED ION PROJECTION CHARGING METHOD

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569176A (en) * 1976-01-09 1980-06-11 Amcor Ltd Ionization device
JPS52128138A (en) * 1976-04-20 1977-10-27 Canon Inc Method for removing insulating liquid
US4110614A (en) * 1976-12-17 1978-08-29 Xerox Corporation Corona device
US4910637A (en) * 1978-10-23 1990-03-20 Rinoud Hanna Modifying the discharge breakdown
JPS5571575A (en) * 1978-11-24 1980-05-29 Matsushita Electric Ind Co Ltd Image recorder
US4260235A (en) * 1979-03-26 1981-04-07 International Business Machines Corporation Contamination prevention system
JPS5859468A (en) * 1982-07-12 1983-04-08 Sharp Corp Corona charging device
US4523082A (en) * 1983-05-05 1985-06-11 Sturdevant Eugene J Electrode shield device
CA1297835C (en) * 1985-09-05 1992-03-24 Toyoda Gosei Co., Ltd. Corona discharge treating method and apparatus for resin moldings
US5587584A (en) * 1996-03-28 1996-12-24 Xerox Corporation Apparatus for charging a film on the internal surface of a drum
JP3944889B2 (en) * 1997-05-13 2007-07-18 富士フイルム株式会社 Web charging equipment
US7808257B2 (en) * 2003-11-12 2010-10-05 International Business Machines Corporation Ionization test for electrical verification

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277298A (en) * 1964-10-05 1966-10-04 Formfoto Mfg Company Corona discharge device
US3611414A (en) * 1969-09-03 1971-10-05 Eastman Kodak Co Electrographic oscillograph
US3711710A (en) * 1969-11-07 1973-01-16 Australia Res Lab Method of and means for controlling corona emission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437739A1 (en) * 1983-11-30 1985-06-05 Xerox Corp., Rochester, N.Y. FLUID JET SUPPORTED ION PROJECTION CHARGING METHOD

Also Published As

Publication number Publication date
NL151524B (en) 1976-11-15
NL7313066A (en) 1974-03-28
DE2342471A1 (en) 1974-04-04
FR2200651B1 (en) 1976-11-19
BR7307084D0 (en) 1974-07-11
DE2342471B2 (en) 1976-09-16
IT993209B (en) 1975-09-30
CA996992A (en) 1976-09-14
US3783283A (en) 1974-01-01
FR2200651A1 (en) 1974-04-19
JPS4973139A (en) 1974-07-15

Similar Documents

Publication Publication Date Title
ES449789A1 (en) Corona charging device
GB1270273A (en) Improvements in and relating to electrophotography
GB1395467A (en) Corona charging device with semiconductive shield
GB807798A (en) Electrostatic charging means and method
GB1220745A (en) Latch assemblies
SE408252B (en) DEVICE FOR URL CHARGING OF THE STATCH CHARGED WITH STATIC ELECTRICITY BY ELECTRICAL GLIRE DISCHARGE
GB1032196A (en) Method and apparatus for imparting an electrostatic charge to a layer of insulating material
GB1331691A (en) Laminated static charge suppressor buses
GB1055416A (en) Two-wire corona discharge for electrostatic charge pattern formation
GB1169632A (en) Corona Charging Device
JPS5310435A (en) Image recording method
ES382404A1 (en) Electrostatic charging device having a spark gap voltage regulator between a corona source and a voltage source
GB1211422A (en) Electrically charging surfaces
GB1373235A (en) Charging of electrophotographic surfaces
GB1278301A (en) Electrostatic copying process
GB1309663A (en) Photoelectrophoretic imaging system
JPS53106126A (en) Electrostatic recording and apparatus therefor
GB1225369A (en)
GB1453474A (en) Method of electrically charging an electrographic layer
JPS5384486A (en) Electric charge coupled element
JPS5468638A (en) Corona charger
ES386752A1 (en) Migration imaging method
GB1279758A (en) Electrostatic charging device for electrophotography
AU504227B2 (en) Static electric charge neutralized by corona electrodes
GB828282A (en) Improvements relating to electrostatic precipitators

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee