EP1288738A3 - Image forming apparatus and cleaning device therefor - Google Patents

Image forming apparatus and cleaning device therefor Download PDF

Info

Publication number
EP1288738A3
EP1288738A3 EP02019723A EP02019723A EP1288738A3 EP 1288738 A3 EP1288738 A3 EP 1288738A3 EP 02019723 A EP02019723 A EP 02019723A EP 02019723 A EP02019723 A EP 02019723A EP 1288738 A3 EP1288738 A3 EP 1288738A3
Authority
EP
European Patent Office
Prior art keywords
brush
cleaning device
image forming
forming apparatus
toner
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.)
Granted
Application number
EP02019723A
Other languages
German (de)
French (fr)
Other versions
EP1288738A2 (en
EP1288738B1 (en
Inventor
Ken Amemiya
Yukiko Iwasaki
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
Publication of EP1288738A2 publication Critical patent/EP1288738A2/en
Publication of EP1288738A3 publication Critical patent/EP1288738A3/en
Application granted granted Critical
Publication of EP1288738B1 publication Critical patent/EP1288738B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
    • G03G15/0225—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers provided with means for cleaning the charging member
    • 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
    • G03G21/0035—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 a brush; Details of cleaning brushes, e.g. fibre density
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/16—Transferring device, details
    • G03G2215/1647—Cleaning of transfer member
    • G03G2215/1657—Cleaning of transfer member of transfer drum
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/16—Transferring device, details
    • G03G2215/1647—Cleaning of transfer member
    • G03G2215/1661—Cleaning of transfer member of transfer belt
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1693—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for charging
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Cleaning In Electrography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

A cleaning device of the present invention includes a brush roller having a brush held in contact with the surface of a body to be cleaned. The brush contacts the surface of the body to be cleaned due to the weight of the brush roller and rotates by following the movement of the above surface. A flicker is held in contact with the brush in order to remove toner deposited on the brush. A casing forms a chamber therein for storing the toner removed by the flicker. The brush roller maintains an expected cleaning ability even when impurities deposited on the brush absorb moisture in a high-humidity environment and cannot be easily removed or when a great amount of toner deposits on the brush at a time.
EP02019723A 2001-09-04 2002-09-03 Image forming apparatus and cleaning device therefor Expired - Lifetime EP1288738B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001268095 2001-09-04
JP2001268095A JP4931303B2 (en) 2001-09-04 2001-09-04 Cleaning unit and image forming apparatus

Publications (3)

Publication Number Publication Date
EP1288738A2 EP1288738A2 (en) 2003-03-05
EP1288738A3 true EP1288738A3 (en) 2003-05-28
EP1288738B1 EP1288738B1 (en) 2011-11-02

Family

ID=19094129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019723A Expired - Lifetime EP1288738B1 (en) 2001-09-04 2002-09-03 Image forming apparatus and cleaning device therefor

Country Status (2)

Country Link
EP (1) EP1288738B1 (en)
JP (1) JP4931303B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101105671B (en) * 2006-07-13 2011-01-12 株式会社理光 Developing unit, process cartridge and image forming apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005004070A (en) * 2003-06-13 2005-01-06 Ricoh Co Ltd Cleaning device, image forming apparatus, processing unit, cleaning method, and image forming apparatus
US6961534B2 (en) 2003-09-26 2005-11-01 Xerox Corporation Rotating flicker bar for cleaning a rotating cleaner roll and for transmitting power to the cleaner roll
JP4730049B2 (en) * 2005-10-07 2011-07-20 富士ゼロックス株式会社 Image forming cartridge
US7860428B2 (en) 2006-05-16 2010-12-28 Fuji Xerox Co., Ltd. Detachable holding portions in an image forming apparatus
JP7293694B2 (en) * 2019-02-05 2023-06-20 富士電機株式会社 Showcase

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114979A (en) * 1980-02-16 1981-09-09 Konishiroku Photo Ind Co Ltd Electrostatic recorder
JPS56122076A (en) * 1980-02-29 1981-09-25 Toshiba Corp Cleaning device of electronic copier
JPS59218479A (en) * 1983-05-27 1984-12-08 Fujitsu Ltd Cleaning device of image forming face
JPH0895350A (en) * 1994-09-28 1996-04-12 Ricoh Co Ltd Electrifier for image forming device
JPH10239951A (en) * 1997-02-27 1998-09-11 Ricoh Co Ltd Electrifying brush roller, process cartridge, and electrophotographic device
US5842081A (en) * 1995-05-31 1998-11-24 Fuji Xerox Co., Ltd. Method and apparatus for charging an electrographic photoreceptor
EP1229399A1 (en) * 2001-01-25 2002-08-07 Ricoh Company, Ltd. Cleaning device and image forming apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06282195A (en) * 1993-03-25 1994-10-07 Toshiba Corp Fixing device for image forming device
JP3410276B2 (en) * 1996-02-07 2003-05-26 株式会社リコー Image forming device
JPH09305078A (en) * 1996-05-15 1997-11-28 Toshiba Corp Cleaner and image forming device
JP2000181309A (en) * 1998-12-15 2000-06-30 Brother Ind Ltd Image forming apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114979A (en) * 1980-02-16 1981-09-09 Konishiroku Photo Ind Co Ltd Electrostatic recorder
JPS56122076A (en) * 1980-02-29 1981-09-25 Toshiba Corp Cleaning device of electronic copier
JPS59218479A (en) * 1983-05-27 1984-12-08 Fujitsu Ltd Cleaning device of image forming face
JPH0895350A (en) * 1994-09-28 1996-04-12 Ricoh Co Ltd Electrifier for image forming device
US5842081A (en) * 1995-05-31 1998-11-24 Fuji Xerox Co., Ltd. Method and apparatus for charging an electrographic photoreceptor
JPH10239951A (en) * 1997-02-27 1998-09-11 Ricoh Co Ltd Electrifying brush roller, process cartridge, and electrophotographic device
EP1229399A1 (en) * 2001-01-25 2002-08-07 Ricoh Company, Ltd. Cleaning device and image forming apparatus

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 191 (P - 092) 5 December 1981 (1981-12-05) *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 201 (P - 094) 19 December 1981 (1981-12-19) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 090 (P - 350) 19 April 1985 (1985-04-19) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101105671B (en) * 2006-07-13 2011-01-12 株式会社理光 Developing unit, process cartridge and image forming apparatus

Also Published As

Publication number Publication date
EP1288738A2 (en) 2003-03-05
JP2003076240A (en) 2003-03-14
JP4931303B2 (en) 2012-05-16
EP1288738B1 (en) 2011-11-02

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