JPS647046A - Carrier for dry binary component type developing agent - Google Patents
Carrier for dry binary component type developing agentInfo
- Publication number
- JPS647046A JPS647046A JP62162976A JP16297687A JPS647046A JP S647046 A JPS647046 A JP S647046A JP 62162976 A JP62162976 A JP 62162976A JP 16297687 A JP16297687 A JP 16297687A JP S647046 A JPS647046 A JP S647046A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- substance
- electroconductive
- coating layer
- developing agent
- 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
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
- G03G9/1139—Inorganic components of coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To enable the use of a developing agent for a long period without generating the spent of a toner, even if an electroconductive material is exposed on the surface of the titled carrier, by processing previously a fine particle of the electroconductive material with a substance having low surface energy, followed by dispersing the obtd. particle in a carrier coating solution to form a coating layer. CONSTITUTION:The coating layer (a carrier coating layer) composed of a resin contg. the fine particle of the electroconductive fine material which is previously surface-treated with the substance having the low energy, is formed on the surface of a carrier core material. The electroconductive fine particle usable for the titled carrier. is composed of a metal, a metal oxide, a sulfide, a carbon, a graphite or a conductive high polymer, etc., which has a particle size of about 1mmu-1mu. And, the substance having the low surface energy is exemplified by an org. acid or a silane coupler which has a fluorocarbon group, etc. Thus, the developer has a long shelf life, and an image having the good quality for the long period, can be formed without generating the spent of the toner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162976A JPS647046A (en) | 1987-06-30 | 1987-06-30 | Carrier for dry binary component type developing agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162976A JPS647046A (en) | 1987-06-30 | 1987-06-30 | Carrier for dry binary component type developing agent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647046A true JPS647046A (en) | 1989-01-11 |
Family
ID=15764859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62162976A Pending JPS647046A (en) | 1987-06-30 | 1987-06-30 | Carrier for dry binary component type developing agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647046A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0800118A1 (en) * | 1996-04-01 | 1997-10-08 | Fuji Xerox Co., Ltd. | Carrier for developer of electrostatic latent image, method for making said carrier, developer of electrostatic latent image, method for forming image and apparatus for forming image |
JP2010097206A (en) * | 2008-09-17 | 2010-04-30 | Ricoh Co Ltd | Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method |
JP2011145648A (en) * | 2009-12-17 | 2011-07-28 | Ricoh Co Ltd | Carrier for electrostatic latent image developer, two-component developer, container containing developer, image forming method, and process cartridge |
-
1987
- 1987-06-30 JP JP62162976A patent/JPS647046A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0800118A1 (en) * | 1996-04-01 | 1997-10-08 | Fuji Xerox Co., Ltd. | Carrier for developer of electrostatic latent image, method for making said carrier, developer of electrostatic latent image, method for forming image and apparatus for forming image |
US5849448A (en) * | 1996-04-01 | 1998-12-15 | Fuji Xerox Co., Ltd. | Carrier for developer of electrostatic latent image, method for making said carrier |
JP2010097206A (en) * | 2008-09-17 | 2010-04-30 | Ricoh Co Ltd | Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method |
JP2011145648A (en) * | 2009-12-17 | 2011-07-28 | Ricoh Co Ltd | Carrier for electrostatic latent image developer, two-component developer, container containing developer, image forming method, and process cartridge |
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