JPS56138763A - Transfer roller used for electrophotographic apparatus - Google Patents

Transfer roller used for electrophotographic apparatus

Info

Publication number
JPS56138763A
JPS56138763A JP4115880A JP4115880A JPS56138763A JP S56138763 A JPS56138763 A JP S56138763A JP 4115880 A JP4115880 A JP 4115880A JP 4115880 A JP4115880 A JP 4115880A JP S56138763 A JPS56138763 A JP S56138763A
Authority
JP
Japan
Prior art keywords
resistance value
roller shaft
transfer
conductive
deposited
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
JP4115880A
Other languages
Japanese (ja)
Inventor
Yoshiro Suzuki
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP4115880A priority Critical patent/JPS56138763A/en
Priority to US06/248,279 priority patent/US4379630A/en
Publication of JPS56138763A publication Critical patent/JPS56138763A/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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/1665—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • G03G15/167—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer
    • G03G15/1685—Structure, details of the transfer member, e.g. chemical composition

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To enable copiers of good image quality to be obtained at high speed by providing a conductive roller shaft which is connected to a transfer bias power source and is used to impress prescribed transfer bias voltage across the same and a latent image change holding body, and a conductive elastic member deposited on the outside circumference of said roller shaft. CONSTITUTION:A transfer roller 20 consists of a conductive elastic member 22 deposited on the outside circumference of a conductive roller shaft 21 of a uniform diameter. The resistance value of the composition of the member 22 is made successively higher stepwise from the central part 22A toward the end face part 22B and 22C. The axial length is made rougly equal to or slightly shorter than the length of a photoreceptor 4 which is a latent image charge holding body; also, the edge 23 of the end part 22C is beveled. Good results will be obtained if the resistance value of the end part 22C is set at 3-10 times the resistance value in the central part 22A. Thereby, the occurrence of uneven transfer is eliminated.
JP4115880A 1980-04-01 1980-04-01 Transfer roller used for electrophotographic apparatus Pending JPS56138763A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4115880A JPS56138763A (en) 1980-04-01 1980-04-01 Transfer roller used for electrophotographic apparatus
US06/248,279 US4379630A (en) 1980-04-01 1981-03-27 Transfer roller for electrophotographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4115880A JPS56138763A (en) 1980-04-01 1980-04-01 Transfer roller used for electrophotographic apparatus

Publications (1)

Publication Number Publication Date
JPS56138763A true JPS56138763A (en) 1981-10-29

Family

ID=12600604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4115880A Pending JPS56138763A (en) 1980-04-01 1980-04-01 Transfer roller used for electrophotographic apparatus

Country Status (1)

Country Link
JP (1) JPS56138763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05142955A (en) * 1991-05-10 1993-06-11 Hitachi Ltd Electrophotographic recorder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151054A (en) * 1978-05-18 1979-11-27 Seiko Epson Corp Liquid crystal display panel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151054A (en) * 1978-05-18 1979-11-27 Seiko Epson Corp Liquid crystal display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05142955A (en) * 1991-05-10 1993-06-11 Hitachi Ltd Electrophotographic recorder

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