JPS56161580A - Electrophotographic copier - Google Patents

Electrophotographic copier

Info

Publication number
JPS56161580A
JPS56161580A JP6460680A JP6460680A JPS56161580A JP S56161580 A JPS56161580 A JP S56161580A JP 6460680 A JP6460680 A JP 6460680A JP 6460680 A JP6460680 A JP 6460680A JP S56161580 A JPS56161580 A JP S56161580A
Authority
JP
Japan
Prior art keywords
photoreceptor
drum
opening
developing
arrow
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
JP6460680A
Other languages
Japanese (ja)
Inventor
Tsutomu Imai
Takeshi Iijima
Yuichiro Azuma
Shunji Kato
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 JP6460680A priority Critical patent/JPS56161580A/en
Publication of JPS56161580A publication Critical patent/JPS56161580A/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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
    • G03G15/752—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum with renewable photoconductive layer

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

PURPOSE:To prevent adsorption of carriers on a clamping member by positioning the surface of the clamping member further from a developing electrode than the surface of a photoreceptor. CONSTITUTION:A sheetlike photoreceptor 2 let-out from a let-out roll 3 as shown by an arrow B passes through an opening 4 and goes to the outside of a drum 1, thereby covering the peripheral surface thereof. Again it enters the drum 1 through the opening 4 and is taken up on a take-up roll 5 as shown by an arrow C. A sealing member 6 which is used to close the opening 4 prevents the entry of the developer into the drum 1 and clamps the photoreceptor 2. This sheet 6 is retracted from the cylindrical surface formed by the photoreceptor 2. Then, in spite of expanding of the spacing from the developing electrode, no effect is given to the developing of image parts, and the electric field due to a developing bias power source is weakened. As a result, the sticking of the carrier to the seal 6 is prevented.
JP6460680A 1980-05-15 1980-05-15 Electrophotographic copier Pending JPS56161580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6460680A JPS56161580A (en) 1980-05-15 1980-05-15 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6460680A JPS56161580A (en) 1980-05-15 1980-05-15 Electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS56161580A true JPS56161580A (en) 1981-12-11

Family

ID=13263078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6460680A Pending JPS56161580A (en) 1980-05-15 1980-05-15 Electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS56161580A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334287A2 (en) * 1988-03-22 1989-09-27 Hitachi, Ltd. Electrostatic recording apparatus
JPH04245679A (en) * 1991-01-31 1992-09-02 Toshiba Corp Solid-state imaging device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134656A (en) * 1974-04-10 1975-10-24
JPS53135642A (en) * 1977-04-30 1978-11-27 Ricoh Co Ltd Detachable device of sheet photoreceptor relative drum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134656A (en) * 1974-04-10 1975-10-24
JPS53135642A (en) * 1977-04-30 1978-11-27 Ricoh Co Ltd Detachable device of sheet photoreceptor relative drum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334287A2 (en) * 1988-03-22 1989-09-27 Hitachi, Ltd. Electrostatic recording apparatus
JPH04245679A (en) * 1991-01-31 1992-09-02 Toshiba Corp Solid-state imaging device

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