JPS6440953A - Carrier for developer - Google Patents

Carrier for developer

Info

Publication number
JPS6440953A
JPS6440953A JP62196339A JP19633987A JPS6440953A JP S6440953 A JPS6440953 A JP S6440953A JP 62196339 A JP62196339 A JP 62196339A JP 19633987 A JP19633987 A JP 19633987A JP S6440953 A JPS6440953 A JP S6440953A
Authority
JP
Japan
Prior art keywords
carrier
particles
spherical
core
superior
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
JP62196339A
Other languages
Japanese (ja)
Other versions
JP2569582B2 (en
Inventor
Ikutaro Nagatsuka
Masao Mochizuki
Yasuo Matsumura
Takayoshi Aoki
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 JP62196339A priority Critical patent/JP2569582B2/en
Publication of JPS6440953A publication Critical patent/JPS6440953A/en
Application granted granted Critical
Publication of JP2569582B2 publication Critical patent/JP2569582B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a spherical and fast carrier superior in surface smoothness by spraying a material melted without using any solvent, cooling and solidifying it, and using the obtained spherical particles for the core particles of the carrier, and coating them with a specified coating material. CONSTITUTION:The carrier material composed essentially of a resin, preferably, such as polyester, or polyolefin having a molecular weight of 500-20,000 and fine particles of a magnetic material, such as Fe3O4, gamma-Fe2O3, various ferrite powders, chromium oxide, or various metal powders, are mixed and heated, and directly sprayed in a molten state, and cooled in a comparatively low- temperature air stream to form the spherical particles. They are used for the core of the carrier, and each core particle is coated with a resin coating layer containing a positively chargeable compound, thus permitting the almost perfectly spherical fast carrier particles superior in surface smoothness to be obtained.
JP62196339A 1987-08-07 1987-08-07 Carrier for developer Expired - Lifetime JP2569582B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62196339A JP2569582B2 (en) 1987-08-07 1987-08-07 Carrier for developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62196339A JP2569582B2 (en) 1987-08-07 1987-08-07 Carrier for developer

Publications (2)

Publication Number Publication Date
JPS6440953A true JPS6440953A (en) 1989-02-13
JP2569582B2 JP2569582B2 (en) 1997-01-08

Family

ID=16356187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62196339A Expired - Lifetime JP2569582B2 (en) 1987-08-07 1987-08-07 Carrier for developer

Country Status (1)

Country Link
JP (1) JP2569582B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05134463A (en) * 1991-04-26 1993-05-28 Canon Inc Electrophotographic carrier, two-component developer, production of electrophotographic toner and imge forming method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05134463A (en) * 1991-04-26 1993-05-28 Canon Inc Electrophotographic carrier, two-component developer, production of electrophotographic toner and imge forming method

Also Published As

Publication number Publication date
JP2569582B2 (en) 1997-01-08

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