JPS56125768A - Charging device - Google Patents

Charging device

Info

Publication number
JPS56125768A
JPS56125768A JP2942480A JP2942480A JPS56125768A JP S56125768 A JPS56125768 A JP S56125768A JP 2942480 A JP2942480 A JP 2942480A JP 2942480 A JP2942480 A JP 2942480A JP S56125768 A JPS56125768 A JP S56125768A
Authority
JP
Japan
Prior art keywords
photoreceptor
charging
wires
charger
position closer
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
JP2942480A
Other languages
Japanese (ja)
Inventor
Kunihiko Ikeda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2942480A priority Critical patent/JPS56125768A/en
Publication of JPS56125768A publication Critical patent/JPS56125768A/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 enable secondary charging over the entire surface of a photoreceptor to be accomplished uniformly over the entire surface with simple construction by extending a plurality of discharge wires within a secondary charger, and providing one wire out of these in the position closer to the photoreceptor than the other wires. CONSTITUTION:A charging device 14 is housed in a shield case 30 in which the primary charger 15 and secondary charger 16 of double construction are constructed in one piece. In addition, for example, three pieces of discharge wires 37a-37c are extended in the shield case 30 of the secondary charger 16, and these wired 37a-37c extend in the width direction of a photoreceptor 10 and are disposed along the rotating direction A of the photoreceptor 10, so that the secondary charging of the reversed polarity of the primary charging is carried out. Further, the central wire 37b of these three wires is provided in the position closer by l to the photoreceptor side by the remaining wires 37a, 37c. In this way, uneven charging is prevented and the secondary charging is carried out uniformly over the entire part with a simple constitution.
JP2942480A 1980-03-08 1980-03-08 Charging device Pending JPS56125768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2942480A JPS56125768A (en) 1980-03-08 1980-03-08 Charging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2942480A JPS56125768A (en) 1980-03-08 1980-03-08 Charging device

Publications (1)

Publication Number Publication Date
JPS56125768A true JPS56125768A (en) 1981-10-02

Family

ID=12275741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2942480A Pending JPS56125768A (en) 1980-03-08 1980-03-08 Charging device

Country Status (1)

Country Link
JP (1) JPS56125768A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194759U (en) * 1983-06-13 1984-12-25 株式会社リコー Charge separation device
FR2554611A1 (en) * 1983-11-09 1985-05-10 Olympus Optical Co METHOD FOR REMOVING ELECTROSTATIC CHARGES FROM A PHOTOSENSITIVE DEVICE FOR ELECTROPHOTOGRAPHY
US5636011A (en) * 1993-03-03 1997-06-03 Fujitsu Limited Static electricity removal method and apparatus for image carrier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194759U (en) * 1983-06-13 1984-12-25 株式会社リコー Charge separation device
FR2554611A1 (en) * 1983-11-09 1985-05-10 Olympus Optical Co METHOD FOR REMOVING ELECTROSTATIC CHARGES FROM A PHOTOSENSITIVE DEVICE FOR ELECTROPHOTOGRAPHY
US5636011A (en) * 1993-03-03 1997-06-03 Fujitsu Limited Static electricity removal method and apparatus for image carrier

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