JPS6429859A - Carrier for developing electrostatic latent image - Google Patents

Carrier for developing electrostatic latent image

Info

Publication number
JPS6429859A
JPS6429859A JP62186293A JP18629387A JPS6429859A JP S6429859 A JPS6429859 A JP S6429859A JP 62186293 A JP62186293 A JP 62186293A JP 18629387 A JP18629387 A JP 18629387A JP S6429859 A JPS6429859 A JP S6429859A
Authority
JP
Japan
Prior art keywords
carrier
coating layer
electrostatic charge
stable
latent image
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.)
Pending
Application number
JP62186293A
Other languages
Japanese (ja)
Inventor
Yukio Tanigami
Masahiro Yasuno
Makoto Kobayashi
Shuntaro Kori
Junji Machida
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP62186293A priority Critical patent/JPS6429859A/en
Publication of JPS6429859A publication Critical patent/JPS6429859A/en
Pending 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto

Abstract

PURPOSE:To maintain a stable triboelectrostatic charge quantity and to speed up the rise of electrostatic charge by coating the surfaces of carrier core particles with a resin and fixing electrostatic charge control agent particles to the coating layer. CONSTITUTION:The intermediate coating layer is formed on the carrier core particles by coating the same with the resin. The electrostatic charge control agent is added to a carrier having the resulted intermediate coating layer and is fixed by, for example, heating, to the intermediate coating layer to form the coating layer on the surfaces of the carrier core. The carrier obtd. in such a manner has high electric resistance and partially adequate electrical conductivity and, therefore, the carrier has stable triboelectrostatic chargeability and the accumulation of electric charge is not generated even if the carrier is used for a long period of time. The stable electrostatic charge quantity is thus imparted to a toner.
JP62186293A 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image Pending JPS6429859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62186293A JPS6429859A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62186293A JPS6429859A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Publications (1)

Publication Number Publication Date
JPS6429859A true JPS6429859A (en) 1989-01-31

Family

ID=16185778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62186293A Pending JPS6429859A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Country Status (1)

Country Link
JP (1) JPS6429859A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071726A (en) * 1989-12-26 1991-12-10 Xerox Corporation Developer compositions with treated carrier particles
JPH04288556A (en) * 1990-01-23 1992-10-13 Ricoh Co Ltd Dry two-component developer for electrostatic latent image
US5230980A (en) * 1989-12-26 1993-07-27 Xerox Corporation Treating carrier particles with coatings containing charge enhancing additives
US8192908B2 (en) 2007-05-29 2012-06-05 Sharp Kabushiki Kaisha Carrier, developer, development device, image forming apparatus and image forming method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071726A (en) * 1989-12-26 1991-12-10 Xerox Corporation Developer compositions with treated carrier particles
US5230980A (en) * 1989-12-26 1993-07-27 Xerox Corporation Treating carrier particles with coatings containing charge enhancing additives
JPH04288556A (en) * 1990-01-23 1992-10-13 Ricoh Co Ltd Dry two-component developer for electrostatic latent image
US8192908B2 (en) 2007-05-29 2012-06-05 Sharp Kabushiki Kaisha Carrier, developer, development device, image forming apparatus and image forming method

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