WO2009008433A1 - 磁性キャリア、2成分現像剤、現像ユニット、現像装置、画像形成装置、および画像形成方法 - Google Patents
磁性キャリア、2成分現像剤、現像ユニット、現像装置、画像形成装置、および画像形成方法 Download PDFInfo
- Publication number
- WO2009008433A1 WO2009008433A1 PCT/JP2008/062355 JP2008062355W WO2009008433A1 WO 2009008433 A1 WO2009008433 A1 WO 2009008433A1 JP 2008062355 W JP2008062355 W JP 2008062355W WO 2009008433 A1 WO2009008433 A1 WO 2009008433A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- magnetic carrier
- component developer
- forming apparatus
- developing device
- Prior art date
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Classifications
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- 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
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
-
- 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
- G03G9/0819—Developers with toner particles characterised by the dimensions of the particles
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- 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
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- 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
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1131—Coating methods; Structure of coatings
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- 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
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1132—Macromolecular components of coatings
- G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/1136—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon atoms
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- 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
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1139—Inorganic components of coatings
-
- 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
- G03G2215/0607—Developer solid type two-component
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
本願発明の磁性キャリアでは、磁性体芯材表面が、導電性粒子と電子写真用トナーに含有されている荷電制御剤と同一成分の荷電制御剤とを含有してなる被覆層により被覆されている。さらに、磁性キャリアの、4×103V/cmの電界下における電気抵抗値が、8.22×107~1.12×1010Ωcmである。よって、経時においても電子写真用トナーを帯電させる能力を維持することが可能となる。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008800211325A CN101681139B (zh) | 2007-07-10 | 2008-07-08 | 磁性载体、二成分显影剂、显影单元、显影装置、图像形成装置以及图像形成方法 |
US12/451,857 US20100104329A1 (en) | 2007-07-10 | 2008-07-08 | Magnetic carrier, two component developer, developing device, image forming apparatus, and image forming method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-181431 | 2007-07-10 | ||
JP2007181431A JP2009020211A (ja) | 2007-07-10 | 2007-07-10 | 磁性キャリア、2成分現像剤、現像装置、画像形成装置、および画像形成方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009008433A1 true WO2009008433A1 (ja) | 2009-01-15 |
Family
ID=40228604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/062355 WO2009008433A1 (ja) | 2007-07-10 | 2008-07-08 | 磁性キャリア、2成分現像剤、現像ユニット、現像装置、画像形成装置、および画像形成方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100104329A1 (ja) |
JP (1) | JP2009020211A (ja) |
CN (1) | CN101681139B (ja) |
WO (1) | WO2009008433A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102334074A (zh) * | 2009-02-27 | 2012-01-25 | 佳能株式会社 | 品红色调色剂 |
CN102334073A (zh) * | 2009-02-27 | 2012-01-25 | 佳能株式会社 | 黄色调色剂 |
JP2015230376A (ja) * | 2014-06-04 | 2015-12-21 | 富士ゼロックス株式会社 | 静電荷像現像剤、プロセスカートリッジ、及び画像形成装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011158830A (ja) * | 2010-02-03 | 2011-08-18 | Canon Inc | 磁性キャリア及び二成分系現像剤 |
JP5511416B2 (ja) * | 2010-02-03 | 2014-06-04 | キヤノン株式会社 | 磁性キャリア及び二成分系現像剤 |
JP7511812B2 (ja) | 2019-11-11 | 2024-07-08 | 株式会社リコー | 電子写真画像形成用キャリア、電子写真画像形成用現像剤、電子写真画像形成方法、電子写真画像形成装置およびプロセスカートリッジ |
JP2022038101A (ja) * | 2020-08-26 | 2022-03-10 | シャープ株式会社 | 二成分現像剤、現像装置、および画像形成装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6429865A (en) * | 1987-07-24 | 1989-01-31 | Minolta Camera Kk | Carrier for developing electrostatic latent image |
JP2004271856A (ja) * | 2003-01-17 | 2004-09-30 | Ricoh Co Ltd | 二成分現像剤、現像装置、プロセスカートリッジ及び画像形成装置 |
JP2007148301A (ja) * | 2005-11-02 | 2007-06-14 | Ricoh Co Ltd | 静電荷像現像用トナー並びに現像剤及び画像形成方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970571A (en) * | 1974-12-20 | 1976-07-20 | Eastman Kodak Company | Method for producing improved electrographic developer |
JPH0844118A (ja) * | 1994-07-28 | 1996-02-16 | Mita Ind Co Ltd | 電子写真現像剤用磁性キャリア及びその製法 |
DE10041621A1 (de) * | 2000-08-24 | 2002-03-07 | Oce Printing Systems Gmbh | Universal-Carrier, Verfahren zu seiner Herstellung und Zwei-Komponenten-Entwickler für elektrophotographische Drucksysteme |
JP2003195566A (ja) * | 2001-12-28 | 2003-07-09 | Toyo Ink Mfg Co Ltd | 静電荷像現像用トナーおよびそれを用いた画像形成方法 |
JP4195593B2 (ja) * | 2002-09-02 | 2008-12-10 | パウダーテック株式会社 | 電子写真用乾式二成分系現像剤 |
US20060222981A1 (en) * | 2003-02-28 | 2006-10-05 | Tomoegawa Paper Co., Ltd. | Electrophotographic developer |
US7244539B2 (en) * | 2003-05-14 | 2007-07-17 | Canon Kabushiki Kaisha | Magnetic carrier and two-component developer |
JP2005292362A (ja) * | 2004-03-31 | 2005-10-20 | Tomoegawa Paper Co Ltd | 静電荷像現像用トナー |
JP4544099B2 (ja) * | 2005-08-26 | 2010-09-15 | 富士ゼロックス株式会社 | 静電潜像現像用キャリア及び静電潜像現像用現像剤 |
JP4441465B2 (ja) * | 2005-09-12 | 2010-03-31 | シャープ株式会社 | キャリアおよび電子写真用現像剤 |
JP4967345B2 (ja) * | 2006-01-17 | 2012-07-04 | 富士ゼロックス株式会社 | 画像形成装置 |
JP2008008938A (ja) * | 2006-06-27 | 2008-01-17 | Konica Minolta Business Technologies Inc | 電子写真用キャリア、その製造方法、及びそれを用いた画像形成方法 |
JP4887983B2 (ja) * | 2006-09-04 | 2012-02-29 | 富士ゼロックス株式会社 | 静電荷像現像用キャリア、静電荷像現像用現像剤、静電荷像現像用現像剤カートリッジ、プロセスカートリッジおよび画像形成装置 |
JP2008298890A (ja) * | 2007-05-29 | 2008-12-11 | Sharp Corp | 現像剤、現像ユニット、現像装置、および画像形成装置 |
-
2007
- 2007-07-10 JP JP2007181431A patent/JP2009020211A/ja active Pending
-
2008
- 2008-07-08 WO PCT/JP2008/062355 patent/WO2009008433A1/ja active Application Filing
- 2008-07-08 CN CN2008800211325A patent/CN101681139B/zh not_active Expired - Fee Related
- 2008-07-08 US US12/451,857 patent/US20100104329A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6429865A (en) * | 1987-07-24 | 1989-01-31 | Minolta Camera Kk | Carrier for developing electrostatic latent image |
JP2004271856A (ja) * | 2003-01-17 | 2004-09-30 | Ricoh Co Ltd | 二成分現像剤、現像装置、プロセスカートリッジ及び画像形成装置 |
JP2007148301A (ja) * | 2005-11-02 | 2007-06-14 | Ricoh Co Ltd | 静電荷像現像用トナー並びに現像剤及び画像形成方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102334074A (zh) * | 2009-02-27 | 2012-01-25 | 佳能株式会社 | 品红色调色剂 |
CN102334073A (zh) * | 2009-02-27 | 2012-01-25 | 佳能株式会社 | 黄色调色剂 |
CN102334074B (zh) * | 2009-02-27 | 2013-08-28 | 佳能株式会社 | 品红色调色剂 |
CN102334073B (zh) * | 2009-02-27 | 2013-12-04 | 佳能株式会社 | 黄色调色剂 |
JP2015230376A (ja) * | 2014-06-04 | 2015-12-21 | 富士ゼロックス株式会社 | 静電荷像現像剤、プロセスカートリッジ、及び画像形成装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101681139A (zh) | 2010-03-24 |
CN101681139B (zh) | 2013-08-07 |
US20100104329A1 (en) | 2010-04-29 |
JP2009020211A (ja) | 2009-01-29 |
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