JPS6435561A - Carrier for two-component developer for dry processing - Google Patents

Carrier for two-component developer for dry processing

Info

Publication number
JPS6435561A
JPS6435561A JP62192126A JP19212687A JPS6435561A JP S6435561 A JPS6435561 A JP S6435561A JP 62192126 A JP62192126 A JP 62192126A JP 19212687 A JP19212687 A JP 19212687A JP S6435561 A JPS6435561 A JP S6435561A
Authority
JP
Japan
Prior art keywords
carrier
conductive particles
resin
image
oxide
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
JP62192126A
Other languages
Japanese (ja)
Inventor
Yasuo Asahina
Nobuhiro Nakayama
Hiroyuki Fushimi
Kayo Makita
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP62192126A priority Critical patent/JPS6435561A/en
Publication of JPS6435561A publication Critical patent/JPS6435561A/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
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/1136—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon atoms
    • 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)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain an image which is stable for a long period of time by using a silicone resin as a coating resin and incorporating conductive particles selected from a group consisting of titanium oxide, zinc oxide and tin oxide into the coating resin. CONSTITUTION:The silicone resin is used as the coating resin for a coated carrier having the resin coating layer dispersed with the conductive particles on the surface of a carrier core. One or >=two kinds selected from the conductive particles of the group consisting of the white titanium oxide, zinc oxide and tin oxide are used for the conductive particles. Since the good quantity of electrostatic charge is thereby maintained even if the carrier is used for a long period of time, the ground stain and bristle trace of the image are obviated. The excellent image is thus obtd.
JP62192126A 1987-07-31 1987-07-31 Carrier for two-component developer for dry processing Pending JPS6435561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62192126A JPS6435561A (en) 1987-07-31 1987-07-31 Carrier for two-component developer for dry processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62192126A JPS6435561A (en) 1987-07-31 1987-07-31 Carrier for two-component developer for dry processing

Publications (1)

Publication Number Publication Date
JPS6435561A true JPS6435561A (en) 1989-02-06

Family

ID=16286107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62192126A Pending JPS6435561A (en) 1987-07-31 1987-07-31 Carrier for two-component developer for dry processing

Country Status (1)

Country Link
JP (1) JPS6435561A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288577A (en) * 1991-02-27 1994-02-22 Ricoh Company, Ltd. Dry-type developer
JPH09152749A (en) * 1995-11-29 1997-06-10 Fuji Xerox Co Ltd Carrier for electrostatic latent image developer, electrostatic latent image developer and image forming method
EP1030224A1 (en) * 1999-02-18 2000-08-23 Powdertech Co. Ltd. Carrier for electrophotographic developer and electrophotographic developer containing the same
JP2003098761A (en) * 2001-09-25 2003-04-04 Ricoh Co Ltd Carrier for developing electrostatic latent images
JP2010217629A (en) * 2009-03-18 2010-09-30 Ricoh Co Ltd Electrophotographic carrier, electrophotographic two-component developer and image forming method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288577A (en) * 1991-02-27 1994-02-22 Ricoh Company, Ltd. Dry-type developer
JPH09152749A (en) * 1995-11-29 1997-06-10 Fuji Xerox Co Ltd Carrier for electrostatic latent image developer, electrostatic latent image developer and image forming method
EP1030224A1 (en) * 1999-02-18 2000-08-23 Powdertech Co. Ltd. Carrier for electrophotographic developer and electrophotographic developer containing the same
JP2003098761A (en) * 2001-09-25 2003-04-04 Ricoh Co Ltd Carrier for developing electrostatic latent images
JP2010217629A (en) * 2009-03-18 2010-09-30 Ricoh Co Ltd Electrophotographic carrier, electrophotographic two-component developer and image forming method

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