GB2216438B - Developing device with a developing roller and using a single-component developer and method for producing such developing roller - Google Patents

Developing device with a developing roller and using a single-component developer and method for producing such developing roller

Info

Publication number
GB2216438B
GB2216438B GB8905556A GB8905556A GB2216438B GB 2216438 B GB2216438 B GB 2216438B GB 8905556 A GB8905556 A GB 8905556A GB 8905556 A GB8905556 A GB 8905556A GB 2216438 B GB2216438 B GB 2216438B
Authority
GB
United Kingdom
Prior art keywords
developing roller
developing
producing
component developer
roller
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.)
Expired - Lifetime
Application number
GB8905556A
Other languages
English (en)
Other versions
GB2216438A (en
GB8905556D0 (en
Inventor
Fuchio Takeda
Koji Sakamoto
Kazuo Kobayashi
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 GB8905556D0 publication Critical patent/GB8905556D0/en
Publication of GB2216438A publication Critical patent/GB2216438A/en
Application granted granted Critical
Publication of GB2216438B publication Critical patent/GB2216438B/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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0818—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the structure of the donor member, e.g. surface properties
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/0602—Developer
    • G03G2215/0604—Developer solid type
    • G03G2215/0614—Developer solid type one-component
    • G03G2215/0617—Developer solid type one-component contact development (i.e. the developer layer on the donor member contacts the latent image carrier)
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/0634—Developing device
    • G03G2215/0636—Specific type of dry developer device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
GB8905556A 1988-03-10 1989-03-10 Developing device with a developing roller and using a single-component developer and method for producing such developing roller Expired - Lifetime GB2216438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63056767A JPH01230079A (ja) 1988-03-10 1988-03-10 一成分現像装置

Publications (3)

Publication Number Publication Date
GB8905556D0 GB8905556D0 (en) 1989-04-19
GB2216438A GB2216438A (en) 1989-10-11
GB2216438B true GB2216438B (en) 1992-01-02

Family

ID=13036642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8905556A Expired - Lifetime GB2216438B (en) 1988-03-10 1989-03-10 Developing device with a developing roller and using a single-component developer and method for producing such developing roller

Country Status (4)

Country Link
US (1) US4899689A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH01230079A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3907889A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2216438B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136335A (en) * 1989-01-17 1992-08-04 Ricoh Company, Ltd. Developer carrier with a dielectric layer having a frequency characteristic confined in a predetermined range
US5110705A (en) * 1989-03-31 1992-05-05 Kabushiki Kaisha Toshiba Contact type developing method and developing unit
US5223668A (en) * 1989-04-27 1993-06-29 Ricoh Company, Ltd. Single component developing device with velocity of roller dependent on time constant of circuit formed by resistor layer of developer carrying member and photosensitive drum
US5068691B1 (en) * 1989-06-01 1995-01-24 Fujitsu Ltd Developing device with a controllable pressure release for the developing roller
JPH03261978A (ja) * 1990-03-13 1991-11-21 Toshiba Corp 現像方法及び現像装置
JP3001611B2 (ja) * 1990-05-31 2000-01-24 株式会社東芝 現像装置
JP2801381B2 (ja) 1990-09-18 1998-09-21 三井化学株式会社 高純度アニリンの製造法
JP3068121B2 (ja) * 1991-03-22 2000-07-24 セイコーエプソン株式会社 現像装置
US5177538A (en) * 1991-09-27 1993-01-05 Xerox Corporation Phenolic graphite donor roll
JPH06295127A (ja) * 1993-04-08 1994-10-21 Ricoh Co Ltd 回転型現像装置
US6122468A (en) * 1998-10-09 2000-09-19 Ricoh Company, Ltd. Method and apparatus for forming toner images
US6608984B1 (en) * 1999-04-23 2003-08-19 Ricoh Company, Ltd. Image forming method and apparatus using developer carrier pressed into engagement with image carrier
JP2002040826A (ja) 2000-07-19 2002-02-06 Sharp Corp 転写装置
JP2002040796A (ja) 2000-07-19 2002-02-06 Sharp Corp 現像装置
JP2002040799A (ja) * 2000-07-27 2002-02-06 Ricoh Co Ltd 現像ロール及びそれを有する現像装置
US20050123311A1 (en) * 2003-12-06 2005-06-09 Samsung Electronics Co., Ltd. Image forming apparatus and method for sensing remaining amount of developer
JP4297928B2 (ja) 2006-08-08 2009-07-15 シャープ株式会社 画像形成方法及びこれを用いた画像形成装置
US8483591B2 (en) * 2009-08-27 2013-07-09 Xerox Corporation Bias charging overcoat
US8768219B2 (en) * 2009-11-20 2014-07-01 Xerox Corporation Bias charging overcoat
US8649704B2 (en) * 2009-11-20 2014-02-11 Xerox Corporation Bias charging overcoat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150465A (en) * 1980-12-05 1985-07-03 Ricoh Kk Electrophotographic developing apparatus
DE3705341A1 (de) * 1986-02-19 1987-08-27 Ricoh Kk Tonertraeger fuer eine entwicklungseinrichtung eines elektrostatischen kopiergeraets
US4696255A (en) * 1984-08-07 1987-09-29 Ricoh Company, Ltd. Developing apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830012C2 (de) * 1977-07-07 1983-07-28 Ricoh Co., Ltd., Tokyo Vorrichtung zur Entwicklung eines elektrostatischen Ladungsbildes
DE2919804C2 (de) * 1978-05-16 1984-08-02 Ricoh Co., Ltd., Tokio/Tokyo Verfahren und Einrichtung zum Entwickeln eines latenten elektrostatischen Bildes
US4760422A (en) * 1985-01-16 1988-07-26 Ricoh Company, Ltd. Developing device using single component toner
JPH0731452B2 (ja) * 1985-10-28 1995-04-10 株式会社リコー 現像装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150465A (en) * 1980-12-05 1985-07-03 Ricoh Kk Electrophotographic developing apparatus
US4696255A (en) * 1984-08-07 1987-09-29 Ricoh Company, Ltd. Developing apparatus
DE3705341A1 (de) * 1986-02-19 1987-08-27 Ricoh Kk Tonertraeger fuer eine entwicklungseinrichtung eines elektrostatischen kopiergeraets

Also Published As

Publication number Publication date
GB2216438A (en) 1989-10-11
JPH01230079A (ja) 1989-09-13
US4899689A (en) 1990-02-13
DE3907889A1 (de) 1989-09-21
GB8905556D0 (en) 1989-04-19
DE3907889C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-01-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070310