JPS57189156A - Corona charger - Google Patents

Corona charger

Info

Publication number
JPS57189156A
JPS57189156A JP7526381A JP7526381A JPS57189156A JP S57189156 A JPS57189156 A JP S57189156A JP 7526381 A JP7526381 A JP 7526381A JP 7526381 A JP7526381 A JP 7526381A JP S57189156 A JPS57189156 A JP S57189156A
Authority
JP
Japan
Prior art keywords
corona
wire
shielding plates
parts
plate
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.)
Pending
Application number
JP7526381A
Other languages
Japanese (ja)
Inventor
Naoto Fujimura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7526381A priority Critical patent/JPS57189156A/en
Publication of JPS57189156A publication Critical patent/JPS57189156A/en
Pending 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)

Abstract

PURPOSE:To prevent ozone produced during corona charging from going to a member that receives the corona discharging by providing shielding plates enclosing a discharge electrode and projecting parts which are provided on the discharge electrode sides of said shielding plates and block corona wind. CONSTITUTION:An electric discharger is constituted of a corona wire 6, side shielding plates 7, an upper shielding plate 8, openings 9 formed between the side shielding plates and the upper shielding plate, projecting parts 10, etc. The parts 10 are constituted by extending part of the side shielding plates toward the wire 6. Here, the air flow directing from the corona wire toward the plate 7 is generated by the corona discharge generated between the wire 6 and the plate 7 in the position nearer to the wire than the surface 11 to be charged; as a result, the ozone generated on the corona wire side of the parts 10 is prevented from going to the surface 11 by the parts 10.
JP7526381A 1981-05-19 1981-05-19 Corona charger Pending JPS57189156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7526381A JPS57189156A (en) 1981-05-19 1981-05-19 Corona charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7526381A JPS57189156A (en) 1981-05-19 1981-05-19 Corona charger

Publications (1)

Publication Number Publication Date
JPS57189156A true JPS57189156A (en) 1982-11-20

Family

ID=13571155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7526381A Pending JPS57189156A (en) 1981-05-19 1981-05-19 Corona charger

Country Status (1)

Country Link
JP (1) JPS57189156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228668A (en) * 1988-07-18 1990-01-30 Canon Inc Corona electrostatic charge device
US20120189348A1 (en) * 2009-10-01 2012-07-26 Masanobu Yamamoto Electrostatic charger and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228668A (en) * 1988-07-18 1990-01-30 Canon Inc Corona electrostatic charge device
US20120189348A1 (en) * 2009-10-01 2012-07-26 Masanobu Yamamoto Electrostatic charger and image forming apparatus
US8712290B2 (en) * 2009-10-01 2014-04-29 Sharp Kabushiki Kaisha Electrostatic charger and image forming apparatus

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