JPS6429860A - Carrier for developing electrostatic latent image - Google Patents

Carrier for developing electrostatic latent image

Info

Publication number
JPS6429860A
JPS6429860A JP62186295A JP18629587A JPS6429860A JP S6429860 A JPS6429860 A JP S6429860A JP 62186295 A JP62186295 A JP 62186295A JP 18629587 A JP18629587 A JP 18629587A JP S6429860 A JPS6429860 A JP S6429860A
Authority
JP
Japan
Prior art keywords
carrier
electrostatic charge
coating layer
charge polarity
particles
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
JP62186295A
Other languages
Japanese (ja)
Inventor
Masahiro Yasuno
Makoto Kobayashi
Yukio Tanigami
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 JP62186295A priority Critical patent/JPS6429860A/en
Publication of JPS6429860A publication Critical patent/JPS6429860A/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
    • 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
    • G03G9/1138—Non-macromolecular organic components of coatings
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To provide a carrier which has high electric resistance, stable triboelectrostatic charge quantity and partial electrical conductivity and has excellent durability as well by coating carrier core particles with a resin and fixing fine inorg. particles treated with a coupling agent having the electrostatic charge polarity reverse from the electrostatic charge polarity reverse from the electrostatic charge polarity of the coating layer onto the surface of said coating layer. CONSTITUTION:The intermediate coating layer is formed on the carrier core particle by coating the particles with the resin. The fine inorg. particles treated with the coupling agent having the electrostatic charge polarity reverse from the electrostatic charge polarity of the coating layer are fixed onto the surface of the carrier having the resultant intermediate coating layer. The carrier obtd. in such a manner has the high electric resistance and adequate electrical conductivity and, therefore, the rise of the electrostatic charge quantity if fast and the carrier has the stable triboelectrostatic chargeability. The accumulation of electric charge is, therefore, 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.
JP62186295A 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image Pending JPS6429860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62186295A JPS6429860A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62186295A JPS6429860A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Publications (1)

Publication Number Publication Date
JPS6429860A true JPS6429860A (en) 1989-01-31

Family

ID=16185816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62186295A Pending JPS6429860A (en) 1987-07-24 1987-07-24 Carrier for developing electrostatic latent image

Country Status (1)

Country Link
JP (1) JPS6429860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03146965A (en) * 1989-11-02 1991-06-21 Fuji Xerox Co Ltd Carrier for electrophotography
US5288578A (en) * 1991-05-14 1994-02-22 Fuji Xerox Co., Ltd. Positively chargeable carrier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03146965A (en) * 1989-11-02 1991-06-21 Fuji Xerox Co Ltd Carrier for electrophotography
US5288578A (en) * 1991-05-14 1994-02-22 Fuji Xerox Co., Ltd. Positively chargeable carrier

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