JPS55127569A - Carrier for electrostatic image development - Google Patents

Carrier for electrostatic image development

Info

Publication number
JPS55127569A
JPS55127569A JP3382379A JP3382379A JPS55127569A JP S55127569 A JPS55127569 A JP S55127569A JP 3382379 A JP3382379 A JP 3382379A JP 3382379 A JP3382379 A JP 3382379A JP S55127569 A JPS55127569 A JP S55127569A
Authority
JP
Japan
Prior art keywords
carrier
formula
resin
methoxy
nitrogen
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
JP3382379A
Other languages
Japanese (ja)
Other versions
JPS5926945B2 (en
Inventor
Keiji Sato
Hiroshi Tokura
Makoto Tomono
Sadaji Terada
Tsuneo Wada
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP54033823A priority Critical patent/JPS5926945B2/en
Publication of JPS55127569A publication Critical patent/JPS55127569A/en
Publication of JPS5926945B2 publication Critical patent/JPS5926945B2/en
Expired legal-status Critical Current

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  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To obtain insulation carrier having stable triboelectric characteristics and excelling in durability, by covering the surface of nucleus particle for carrier with specified coating agent made of silicone resin and nitrogen-containing resin.
CONSTITUTION: Using a mixture of silicone varnish of molecular weight 300W 500,000 such as formula III(Mw≈2000) or formula IV(Mw≈50,000) of cold curing silicone resin of which curing temperature is less than about 100°C (preferably about 20W25°C), for example as shown in formula I, II (X, Y are H, halogen, hydroxy, methyl, methoxy; Z is methoxy, lower alkyl) and nitrogen-containing resin having positive charge characteristics as shown in formula V(Mw≈500,000) or formula VI(150,000), the carrier nucleus particle (grain size should be preferably 30W1000μ) is covered by about 0.1W20μ, thus forming a carrier. Said carrier is mixed with toner (for example, styrene resin + carbon black) to obtain a developer.
COPYRIGHT: (C)1980,JPO&Japio
JP54033823A 1979-03-24 1979-03-24 Carrier for developing electrostatic images Expired JPS5926945B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54033823A JPS5926945B2 (en) 1979-03-24 1979-03-24 Carrier for developing electrostatic images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54033823A JPS5926945B2 (en) 1979-03-24 1979-03-24 Carrier for developing electrostatic images

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP58171279A Division JPS59131944A (en) 1983-09-19 1983-09-19 Electrostatic charge image developing carrier and its manufacture

Publications (2)

Publication Number Publication Date
JPS55127569A true JPS55127569A (en) 1980-10-02
JPS5926945B2 JPS5926945B2 (en) 1984-07-02

Family

ID=12397199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54033823A Expired JPS5926945B2 (en) 1979-03-24 1979-03-24 Carrier for developing electrostatic images

Country Status (1)

Country Link
JP (1) JPS5926945B2 (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5796355A (en) * 1980-12-08 1982-06-15 Ricoh Co Ltd Carrier for electrophotographic developer
JPS57191650A (en) * 1981-05-22 1982-11-25 Ricoh Co Ltd Electrophotographic dry type developer
JPS5840557A (en) * 1981-09-03 1983-03-09 Canon Inc Electrophotographic developer
JPS58168056A (en) * 1982-03-15 1983-10-04 ゼロツクス・コ−ポレ−シヨン Organoalkoxysilane carrier covering agent
JPS58199354A (en) * 1982-05-17 1983-11-19 Ricoh Co Ltd Developer of electrostatic latent image
US4562136A (en) * 1982-03-05 1985-12-31 Ricoh Company, Ltd. Two-component dry-type developer
JPH0233159A (en) * 1988-07-22 1990-02-02 Kao Corp Developer for developing electrostatic charge image
US4937166A (en) * 1985-10-30 1990-06-26 Xerox Corporation Polymer coated carrier particles for electrophotographic developers
US5002846A (en) * 1985-10-30 1991-03-26 Xerox Corporation Developer compositions with coated carrier particles
EP0693712A1 (en) 1994-06-22 1996-01-24 Canon Kabushiki Kaisha Carrier for electrophotography, two component-type developer and image forming method
US5532096A (en) * 1993-12-24 1996-07-02 Kao Corporation Electrophotographic carrier and production process therefor
US5885742A (en) * 1993-10-15 1999-03-23 Canon Kabushiki Kaisha Carrier for electrophotography, two-component type developer, and image forming method
US6100332A (en) * 1998-01-20 2000-08-08 Shin-Etsu Chemical Co., Ltd. Coating composition for electrifying members and electrophotographic carrier
US6187490B1 (en) 1999-03-15 2001-02-13 Canon Kabushiki Kaisha Resin-coated carrier, two-component developer and image forming method
JP2008145571A (en) * 2006-12-07 2008-06-26 Ricoh Co Ltd Carrier and method for manufacturing the same, and developer and image forming method
US7629104B2 (en) 2005-08-08 2009-12-08 Ricoh Company, Ltd. Carrier, method for producing the carrier, developer, and image forming method using the developer
US7842448B2 (en) 2005-03-14 2010-11-30 Kao Corporation Method of forming fixed images
US8084181B2 (en) 2007-05-11 2011-12-27 Ricoh Company, Ltd. Carrier and method for producing the same, developer and image forming method
US8178273B2 (en) 2006-09-12 2012-05-15 Ricoh Company, Ltd. Carrier and manufacturing method thereof, developer, process cartridge, image forming apparatus, and image forming method
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
US8329374B2 (en) 2008-01-18 2012-12-11 Ricoh Company, Ltd. Carrier, production method thereof, developer and image forming method
US8475989B2 (en) 2009-10-15 2013-07-02 Ricoh Company, Limited Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developer
US8481239B2 (en) 2009-10-13 2013-07-09 Ricoh Company Limited Carrier for two-component developer
US8512928B2 (en) 2010-09-14 2013-08-20 Rocoh Company, Ltd. Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrier
US8518626B2 (en) 2010-03-17 2013-08-27 Ricoh Company, Limited Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and apparatus and process cartridge using the developer
US8652738B2 (en) 2010-09-07 2014-02-18 Ricoh Company, Ltd. Contact developing method, image forming apparatus, and process cartridge
US8652735B2 (en) 2010-09-08 2014-02-18 Ricoh Company, Ltd. Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer
US9229347B2 (en) 2013-02-13 2016-01-05 Ricoh Company, Ltd. Carrier for two-component developer, two-component developer using the carrier, and process cartridge and image forming method and apparatus using the two component developer
US9519234B2 (en) 2012-06-27 2016-12-13 Ricoh Company, Ltd. Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus
US9989874B2 (en) 2016-03-17 2018-06-05 Ricoh Company, Ltd. Carrier for developing electrostatic latent images, two-component developer, image forming apparatus, toner storing unit, and supplemental developer
US10054868B2 (en) 2015-11-27 2018-08-21 Ricoh Company, Ltd. Carrier, two-component developer, developer for replenishment, process cartridge, image forming apparatus, and image forming method

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355702B2 (en) * 1980-12-08 1988-11-04 Ricoh Kk
JPS5796355A (en) * 1980-12-08 1982-06-15 Ricoh Co Ltd Carrier for electrophotographic developer
JPS57191650A (en) * 1981-05-22 1982-11-25 Ricoh Co Ltd Electrophotographic dry type developer
JPH0355823B2 (en) * 1981-05-22 1991-08-26
JPS5840557A (en) * 1981-09-03 1983-03-09 Canon Inc Electrophotographic developer
JPH0149941B2 (en) * 1981-09-03 1989-10-26 Canon Kk
US4562136A (en) * 1982-03-05 1985-12-31 Ricoh Company, Ltd. Two-component dry-type developer
JPH0352862B2 (en) * 1982-03-15 1991-08-13 Xerox Corp
JPS58168056A (en) * 1982-03-15 1983-10-04 ゼロツクス・コ−ポレ−シヨン Organoalkoxysilane carrier covering agent
US4600677A (en) * 1982-03-15 1986-07-15 Xerox Corporation Organoalkoxysilane carrier coatings
JPS58199354A (en) * 1982-05-17 1983-11-19 Ricoh Co Ltd Developer of electrostatic latent image
JPH0229210B2 (en) * 1982-05-17 1990-06-28 Ricoh Kk
US4937166A (en) * 1985-10-30 1990-06-26 Xerox Corporation Polymer coated carrier particles for electrophotographic developers
US5002846A (en) * 1985-10-30 1991-03-26 Xerox Corporation Developer compositions with coated carrier particles
JPH0233159A (en) * 1988-07-22 1990-02-02 Kao Corp Developer for developing electrostatic charge image
JP2560085B2 (en) * 1988-07-22 1996-12-04 花王株式会社 Developer for electrostatic image development
US5885742A (en) * 1993-10-15 1999-03-23 Canon Kabushiki Kaisha Carrier for electrophotography, two-component type developer, and image forming method
US5532096A (en) * 1993-12-24 1996-07-02 Kao Corporation Electrophotographic carrier and production process therefor
EP0693712A1 (en) 1994-06-22 1996-01-24 Canon Kabushiki Kaisha Carrier for electrophotography, two component-type developer and image forming method
US5795693A (en) * 1994-06-22 1998-08-18 Canon Kabushiki Kaisha Carrier for electrophotography, two component-type developer and image forming method
US6100332A (en) * 1998-01-20 2000-08-08 Shin-Etsu Chemical Co., Ltd. Coating composition for electrifying members and electrophotographic carrier
EP0932083A3 (en) * 1998-01-20 2000-10-04 Shin-Etsu Chemical Co., Ltd. Coating composition for electrifying members and electrophotographic carrier
US6187490B1 (en) 1999-03-15 2001-02-13 Canon Kabushiki Kaisha Resin-coated carrier, two-component developer and image forming method
US7842448B2 (en) 2005-03-14 2010-11-30 Kao Corporation Method of forming fixed images
US7629104B2 (en) 2005-08-08 2009-12-08 Ricoh Company, Ltd. Carrier, method for producing the carrier, developer, and image forming method using the developer
US8178273B2 (en) 2006-09-12 2012-05-15 Ricoh Company, Ltd. Carrier and manufacturing method thereof, developer, process cartridge, image forming apparatus, and image forming method
JP2008145571A (en) * 2006-12-07 2008-06-26 Ricoh Co Ltd Carrier and method for manufacturing the same, and developer and image forming method
US8043785B2 (en) 2006-12-07 2011-10-25 Ricoh Company, Ltd. Carrier, method for producing the same, developer, and image forming method
US8084181B2 (en) 2007-05-11 2011-12-27 Ricoh Company, Ltd. Carrier and method for producing the same, developer and image forming method
US8329374B2 (en) 2008-01-18 2012-12-11 Ricoh Company, Ltd. Carrier, production method thereof, developer and image forming method
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
US8481239B2 (en) 2009-10-13 2013-07-09 Ricoh Company Limited Carrier for two-component developer
US8475989B2 (en) 2009-10-15 2013-07-02 Ricoh Company, Limited Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developer
US8518626B2 (en) 2010-03-17 2013-08-27 Ricoh Company, Limited Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and apparatus and process cartridge using the developer
US8652738B2 (en) 2010-09-07 2014-02-18 Ricoh Company, Ltd. Contact developing method, image forming apparatus, and process cartridge
US8652735B2 (en) 2010-09-08 2014-02-18 Ricoh Company, Ltd. Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer
US8512928B2 (en) 2010-09-14 2013-08-20 Rocoh Company, Ltd. Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrier
US9519234B2 (en) 2012-06-27 2016-12-13 Ricoh Company, Ltd. Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus
US9229347B2 (en) 2013-02-13 2016-01-05 Ricoh Company, Ltd. Carrier for two-component developer, two-component developer using the carrier, and process cartridge and image forming method and apparatus using the two component developer
US10054868B2 (en) 2015-11-27 2018-08-21 Ricoh Company, Ltd. Carrier, two-component developer, developer for replenishment, process cartridge, image forming apparatus, and image forming method
US9989874B2 (en) 2016-03-17 2018-06-05 Ricoh Company, Ltd. Carrier for developing electrostatic latent images, two-component developer, image forming apparatus, toner storing unit, and supplemental developer

Also Published As

Publication number Publication date
JPS5926945B2 (en) 1984-07-02

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