JPS6413559A - Carrier for developing agent - Google Patents

Carrier for developing agent

Info

Publication number
JPS6413559A
JPS6413559A JP62168801A JP16880187A JPS6413559A JP S6413559 A JPS6413559 A JP S6413559A JP 62168801 A JP62168801 A JP 62168801A JP 16880187 A JP16880187 A JP 16880187A JP S6413559 A JPS6413559 A JP S6413559A
Authority
JP
Japan
Prior art keywords
carrier
consisting essentially
developing agent
surface smoothness
styrene
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
JP62168801A
Other languages
Japanese (ja)
Other versions
JP2621187B2 (en
Inventor
Takayoshi Aoki
Ikutaro Nagatsuka
Shigeyoshi Takahashi
Yasuo Matsumura
Masayuki Takeda
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP62168801A priority Critical patent/JP2621187B2/en
Publication of JPS6413559A publication Critical patent/JPS6413559A/en
Application granted granted Critical
Publication of JP2621187B2 publication Critical patent/JP2621187B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1133—Macromolecular components of coatings obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

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

Abstract

PURPOSE:To obtain a spherical and strong carrier for developing agent having superior surface smoothness by forming a coating layer of a polymer consisting essentially of a positively chargeable monomer on a carrier core for the developing agent. CONSTITUTION:After heating a mixture of a carrier material consisting essentially of a resin and magnetic powder, the material is sprayed directly as it is melted, and cooled with air stream at relatively low temp. Thus, spherical particles having high surface smoothness and high strength are obtained. A coating layer of a copolymer consisting essentially of a positively chargeable monomer is formed on said particles as core. Examples for the suitable component of the copolymer are styrene, methyl styrene, dimethyl styrene, conjugated dienic aliphatic diolefin such as 3-methyl-2,4-hexadiene, etc. By this method, high surface smoothness of a carrier is obtd., coating of a charge controlling polymer is facilitated, and the chargeability is stabilized.
JP62168801A 1987-07-08 1987-07-08 Carrier for developer Expired - Fee Related JP2621187B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62168801A JP2621187B2 (en) 1987-07-08 1987-07-08 Carrier for developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62168801A JP2621187B2 (en) 1987-07-08 1987-07-08 Carrier for developer

Publications (2)

Publication Number Publication Date
JPS6413559A true JPS6413559A (en) 1989-01-18
JP2621187B2 JP2621187B2 (en) 1997-06-18

Family

ID=15874734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62168801A Expired - Fee Related JP2621187B2 (en) 1987-07-08 1987-07-08 Carrier for developer

Country Status (1)

Country Link
JP (1) JP2621187B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011221304A (en) * 2010-04-09 2011-11-04 Canon Inc Magnetic carrier and developer based on two-component system
JP2017049460A (en) * 2015-09-02 2017-03-09 富士ゼロックス株式会社 Electrostatic charge image developer, developer cartridge, process cartridge, image forming apparatus, and image forming method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201247A (en) * 1981-06-05 1982-12-09 Canon Inc Toner
JPS59174857A (en) * 1983-03-24 1984-10-03 Pilot Pen Co Ltd:The Manufacture of pressure-fixable magnetic toner
JPS61205953A (en) * 1985-03-09 1986-09-12 Konishiroku Photo Ind Co Ltd Electrostatic image developing carrier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201247A (en) * 1981-06-05 1982-12-09 Canon Inc Toner
JPS59174857A (en) * 1983-03-24 1984-10-03 Pilot Pen Co Ltd:The Manufacture of pressure-fixable magnetic toner
JPS61205953A (en) * 1985-03-09 1986-09-12 Konishiroku Photo Ind Co Ltd Electrostatic image developing carrier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011221304A (en) * 2010-04-09 2011-11-04 Canon Inc Magnetic carrier and developer based on two-component system
JP2017049460A (en) * 2015-09-02 2017-03-09 富士ゼロックス株式会社 Electrostatic charge image developer, developer cartridge, process cartridge, image forming apparatus, and image forming method

Also Published As

Publication number Publication date
JP2621187B2 (en) 1997-06-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees