DE60207923D1 - Träger für elektrophotographische Entwickler - Google Patents

Träger für elektrophotographische Entwickler

Info

Publication number
DE60207923D1
DE60207923D1 DE60207923T DE60207923T DE60207923D1 DE 60207923 D1 DE60207923 D1 DE 60207923D1 DE 60207923 T DE60207923 T DE 60207923T DE 60207923 T DE60207923 T DE 60207923T DE 60207923 D1 DE60207923 D1 DE 60207923D1
Authority
DE
Germany
Prior art keywords
carrier
electrophotographic developers
developers
electrophotographic
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
DE60207923T
Other languages
English (en)
Other versions
DE60207923T2 (de
Inventor
Kimitoshi Yamaguchi
Masahide Yamashita
Akihiro Kotsugai
Hiroaki Takahashi
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 DE60207923D1 publication Critical patent/DE60207923D1/de
Application granted granted Critical
Publication of DE60207923T2 publication Critical patent/DE60207923T2/de
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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0836—Other physical parameters of the magnetic components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0838—Size of magnetic components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Combined Means For Separation Of Solids (AREA)
DE60207923T 2001-05-01 2002-04-30 Träger für elektrophotographische Entwickler Expired - Lifetime DE60207923T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001134111 2001-05-01
JP2001134111 2001-05-01
JP2002128265A JP3925911B2 (ja) 2001-05-01 2002-04-30 電子写真現像剤用キャリア
JP2002128265 2002-04-30

Publications (2)

Publication Number Publication Date
DE60207923D1 true DE60207923D1 (de) 2006-01-19
DE60207923T2 DE60207923T2 (de) 2006-08-17

Family

ID=26614585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60207923T Expired - Lifetime DE60207923T2 (de) 2001-05-01 2002-04-30 Träger für elektrophotographische Entwickler

Country Status (4)

Country Link
US (1) US6743558B2 (de)
EP (1) EP1255168B1 (de)
JP (1) JP3925911B2 (de)
DE (1) DE60207923T2 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7144670B2 (en) 2002-03-26 2006-12-05 Powertech Co., Ltd. Carrier for electrophotographic developer and process of producing the same
JP4091538B2 (ja) * 2003-03-13 2008-05-28 株式会社リコー 静電潜像現像用キャリア、現像剤、現像剤容器、画像形成方法及びプロセスカートリッジ
US7192679B2 (en) * 2003-03-19 2007-03-20 Ricoh Company, Ltd. Carrier for electrophotographic developer
JP2004341252A (ja) * 2003-05-15 2004-12-02 Ricoh Co Ltd 電子写真現像剤用キャリア、現像剤、現像装置及びプロセスカートリッジ
JP4037329B2 (ja) * 2003-06-25 2008-01-23 株式会社リコー 静電荷像現像用トナー、現像剤、画像形成方法、画像形成装置及びプロセスカートリッジ
JP4087324B2 (ja) * 2003-10-10 2008-05-21 株式会社リコー 静電潜像現像剤用キャリア、現像剤、現像装置、現像剤容器、画像形成装置、現像方法及びプロセスカートリッジ
US7642032B2 (en) * 2003-10-22 2010-01-05 Ricoh Company, Limited Toner, developer, image forming apparatus and image forming method
US7763410B2 (en) * 2003-11-18 2010-07-27 Ricoh Company, Ltd. Electrophotographic developing carrier, associated apparatus and methodology of classification and application
JP4106347B2 (ja) * 2004-03-02 2008-06-25 株式会社リコー キャリア、現像剤及びこれらを用いる画像形成装置
JP4542803B2 (ja) * 2004-03-19 2010-09-15 株式会社リコー 画像形成装置
JP4608393B2 (ja) * 2004-09-10 2011-01-12 株式会社リコー 電子写真用現像剤及び電子写真現像方法、プロセスカートリッジ
JP2006293266A (ja) * 2005-03-16 2006-10-26 Ricoh Co Ltd 静電潜像現像用キャリア、これを用いた静電潜像現像剤、画像形成方法、及びプロセスカートリッジ
JP4520371B2 (ja) * 2005-06-21 2010-08-04 株式会社リコー 電子写真現像剤用キャリアの加振処理方法及び電子写真現像剤用キャリア
US20070020552A1 (en) * 2005-07-25 2007-01-25 Fuji Xerox Co., Ltd. Carrier and developer for electrostatic image development, and image formation method and apparatus
WO2007017701A1 (en) 2005-08-09 2007-02-15 University Of Sunderland Fingerprint analysis using mass spectrometry
JP4728903B2 (ja) * 2005-08-25 2011-07-20 株式会社リコー キャリア及び現像剤、並びに画像形成方法、画像形成装置及びプロセスカートリッジ
JP4861233B2 (ja) * 2006-04-17 2012-01-25 株式会社リコー 電子写真現像剤キャリア用芯材粒子及びその製造方法、並びに電子写真用現像剤及び画像形成方法
JP5333882B2 (ja) * 2006-09-14 2013-11-06 株式会社リコー 電子写真用現像剤
JP2008090055A (ja) * 2006-10-03 2008-04-17 Fuji Xerox Co Ltd 画像形成装置
JP2008134561A (ja) * 2006-11-29 2008-06-12 Ricoh Co Ltd 光沢ムラを抑制する画像形成方法、プロセスカートリッジおよび画像形成装置
US8679719B2 (en) 2007-03-16 2014-03-25 Ricoh Company, Ltd. Carrier, developer and electrophotographic developing method and image forming method
JP5009821B2 (ja) * 2008-01-18 2012-08-22 株式会社リコー キャリアの製造方法、キャリア、現像剤、画像形成方法
US20090202935A1 (en) * 2008-02-13 2009-08-13 Yoshihiro Moriya Carrier, two-component developer containing carrier and toner, and image forming method
JP2010092032A (ja) * 2008-09-11 2010-04-22 Ricoh Co Ltd 電子写真用キャリア及び二成分現像剤
JP5188918B2 (ja) * 2008-09-30 2013-04-24 Ｄｏｗａエレクトロニクス株式会社 電子写真現像剤用キャリア芯材およびその製造方法、電子写真現像剤用キャリア、並びに電子写真現像剤
US8211610B2 (en) * 2009-03-18 2012-07-03 Ricoh Company Limited Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developer
JP5377386B2 (ja) 2010-03-29 2013-12-25 Ｄｏｗａエレクトロニクス株式会社 電子写真現像剤用キャリア芯材、その製造方法、電子写真現像剤用キャリア、および電子写真現像剤
WO2012046863A1 (ja) * 2010-10-08 2012-04-12 キヤノン株式会社 帯電部材、プロセスカートリッジ及び電子写真装置
JP5915073B2 (ja) 2011-10-19 2016-05-11 株式会社リコー 静電潜像現像剤用キャリア、キャリアとトナーとからなる静電潜像現像剤及び該現像剤を用いたプロセスカートリッジ
US9921526B2 (en) 2015-01-09 2018-03-20 Ricoh Company, Ltd. Semiconductive resin composition, member for electrophotography and image forming apparatus
JP2016161903A (ja) 2015-03-05 2016-09-05 株式会社リコー 中間転写ベルト及びそれを用いた画像形成装置
JP2016177102A (ja) 2015-03-19 2016-10-06 株式会社リコー 画像形成装置
JP7238554B2 (ja) * 2019-04-03 2023-03-14 株式会社リコー 電子写真用現像剤、補給用現像剤、画像形成装置、プロセスカートリッジ及び画像形成方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512402A (en) * 1993-05-20 1996-04-30 Canon Kabushiki Kaisha Carrier for electrophotography, two-component type developer, and image forming method
DE69425624T2 (de) * 1993-10-15 2001-04-26 Canon Kk Trägermaterial für Elektrophotographie, Entwickler des zwei-komponenten Typs, und Bildherstellungsverfahren
JPH08320622A (ja) 1995-03-22 1996-12-03 Ricoh Co Ltd 中間転写媒体及び画像形成装置
US5774775A (en) 1995-03-31 1998-06-30 Ricoh Company, Ltd. Electrophotograhic image forming method using an intermediate image transfer element
US5873018A (en) 1995-05-16 1999-02-16 Ricoh Company, Ltd. Image forming apparatus having an intermediate transfer unit with a surface having reduced coefficient of friction
US6004715A (en) 1995-06-26 1999-12-21 Ricoh Company, Ltd. Toner for developing electrostatic images
US6168894B1 (en) 1995-09-14 2001-01-02 Ricoh Company, Ltd. Image forming method and dry toner therefor
US5912100A (en) 1996-01-31 1999-06-15 Ricoh Company, Ltd. Toner for developing electrostatic images
JPH09274400A (ja) 1996-02-09 1997-10-21 Ricoh Co Ltd 定着方法
US5882832A (en) 1996-04-30 1999-03-16 Ricoh Company, Ltd. One component developer developing method and dry toner therefor
US6010814A (en) 1997-10-27 2000-01-04 Ricoh Company, Ltd. Electrophotographic toner composition and image formation method using the composition
JP2000172019A (ja) * 1998-09-30 2000-06-23 Canon Inc 二成分系現像剤用樹脂コ―トキャリア、二成分系現像剤及び現像方法
ES2303365T3 (es) 1998-10-06 2008-08-01 Ricoh Company, Ltd. Metodo electroestatico de formacion de imagenes.
JP3767846B2 (ja) 1999-05-28 2006-04-19 株式会社リコー 静電荷像現像用トナー及び画像形成方法
JP4323684B2 (ja) * 1999-06-30 2009-09-02 キヤノン株式会社 磁性体分散型樹脂キャリアの製造方法
US6472118B1 (en) * 1999-11-17 2002-10-29 Ricoh Company, Ltd Carrier for developer for electrophotography
US6363229B1 (en) 1999-11-17 2002-03-26 Ricoh Company, Ltd. Full-color toner image fixing method and apparatus
DE60120556T2 (de) * 2000-05-23 2007-06-06 Ricoh Co., Ltd. Zwei-Komponenten-Entwickler, ein mit diesem Entwickler gefüllter Behälter, und Bilderzeugungsvorrichtung

Also Published As

Publication number Publication date
US6743558B2 (en) 2004-06-01
JP3925911B2 (ja) 2007-06-06
US20030054279A1 (en) 2003-03-20
JP2003021935A (ja) 2003-01-24
DE60207923T2 (de) 2006-08-17
EP1255168B1 (de) 2005-12-14
EP1255168A1 (de) 2002-11-06

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Legal Events

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8364 No opposition during term of opposition