JPS5713470A - Photoreceptor cleaning device of electrophotographic copying machine - Google Patents

Photoreceptor cleaning device of electrophotographic copying machine

Info

Publication number
JPS5713470A
JPS5713470A JP8586180A JP8586180A JPS5713470A JP S5713470 A JPS5713470 A JP S5713470A JP 8586180 A JP8586180 A JP 8586180A JP 8586180 A JP8586180 A JP 8586180A JP S5713470 A JPS5713470 A JP S5713470A
Authority
JP
Japan
Prior art keywords
cleaning
photosensitive drum
magnetic field
toner
cleaning device
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
JP8586180A
Other languages
Japanese (ja)
Inventor
Satoru Inoue
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 JP8586180A priority Critical patent/JPS5713470A/en
Publication of JPS5713470A publication Critical patent/JPS5713470A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0047—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices

Landscapes

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

Abstract

PURPOSE:To efficiently remove toner by using a magnetic member, which has many extremely fine projections on the surface, as a cleaning member generating a magnetic field and by making a high-gradient magnetic field operate on the toner. CONSTITUTION:On the upper part of the overall length of a photosensitive drum 6, a cleaning unit 7 is provided and in the inside of casing 8 of the cleaning unit 7, a cleaning roller 9 having on the outermost layer a magnetic roller 4 of nickel, etc., with an infinite number of extremely fine projections is provided over the overall length in parallel to the photosensitive drum 6. On the completion of transfer, toner 12 remaining on the photosensitive drum 6, at the point of time when approaching the cleaning roller 9, is sucked to those projections 5 through the operation of a high-gradient magnetic field. Consequently, the surface of the photoreceptor is cleaned efficiently without allowing the cleaning member to contact with said surface.
JP8586180A 1980-06-26 1980-06-26 Photoreceptor cleaning device of electrophotographic copying machine Pending JPS5713470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8586180A JPS5713470A (en) 1980-06-26 1980-06-26 Photoreceptor cleaning device of electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8586180A JPS5713470A (en) 1980-06-26 1980-06-26 Photoreceptor cleaning device of electrophotographic copying machine

Publications (1)

Publication Number Publication Date
JPS5713470A true JPS5713470A (en) 1982-01-23

Family

ID=13870657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8586180A Pending JPS5713470A (en) 1980-06-26 1980-06-26 Photoreceptor cleaning device of electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS5713470A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404215A (en) * 1992-11-18 1995-04-04 Xerox Corporation Developed bead pick-off device
KR20000051024A (en) * 1999-01-18 2000-08-16 윤종용 Spueezee-roller cleaning apparatus for liquid electrophotographic printer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449140A (en) * 1977-09-27 1979-04-18 Ricoh Co Ltd Counter electrode in non-impact recording system
JPS5455442A (en) * 1977-10-12 1979-05-02 Ricoh Co Ltd Magnetic brush developing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449140A (en) * 1977-09-27 1979-04-18 Ricoh Co Ltd Counter electrode in non-impact recording system
JPS5455442A (en) * 1977-10-12 1979-05-02 Ricoh Co Ltd Magnetic brush developing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404215A (en) * 1992-11-18 1995-04-04 Xerox Corporation Developed bead pick-off device
KR20000051024A (en) * 1999-01-18 2000-08-16 윤종용 Spueezee-roller cleaning apparatus for liquid electrophotographic printer

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