JPS5650337A - Resin coated carrier - Google Patents
Resin coated carrierInfo
- Publication number
- JPS5650337A JPS5650337A JP12597779A JP12597779A JPS5650337A JP S5650337 A JPS5650337 A JP S5650337A JP 12597779 A JP12597779 A JP 12597779A JP 12597779 A JP12597779 A JP 12597779A JP S5650337 A JPS5650337 A JP S5650337A
- Authority
- JP
- Japan
- Prior art keywords
- coated carrier
- resin
- resin coated
- resistivity
- carrier
- 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
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To retain superior image density and gradation for a long time, by coating an oxidized iron powder core with a thin film resin of specified resistivity in order to raise resistivity of the resin coated carrier.
CONSTITUTION: This resin coated carrier is prepared by coating an oxidized iron powder as a core material with a thin film resin. A resin/powder ratio is kept ≤10, and resistivity of the resin coated carrier thus obtained is kept within 1×107W 1011Ω.cm. This carrier has low resistivity change, it can retain superior image density and gradation for a long time, and its cost is comparatively low.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12597779A JPS5650337A (en) | 1979-09-29 | 1979-09-29 | Resin coated carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12597779A JPS5650337A (en) | 1979-09-29 | 1979-09-29 | Resin coated carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5650337A true JPS5650337A (en) | 1981-05-07 |
Family
ID=14923665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12597779A Pending JPS5650337A (en) | 1979-09-29 | 1979-09-29 | Resin coated carrier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5650337A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60185961A (en) * | 1984-03-05 | 1985-09-21 | Dainippon Ink & Chem Inc | Carrier of electrophotographic developer |
JPS61123859A (en) * | 1984-11-20 | 1986-06-11 | Fujitsu Ltd | Electrophotographic carrier |
JPH0424654A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0424655A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0424653A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0456966A (en) * | 1990-06-26 | 1992-02-24 | Mita Ind Co Ltd | Two-component developer |
JP2005072553A (en) * | 2003-08-05 | 2005-03-17 | Ricoh Co Ltd | Magnet compound material, magnet molding, developing magnet roller, developer, process cartridge, and image forming device |
-
1979
- 1979-09-29 JP JP12597779A patent/JPS5650337A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60185961A (en) * | 1984-03-05 | 1985-09-21 | Dainippon Ink & Chem Inc | Carrier of electrophotographic developer |
JPH0456983B2 (en) * | 1984-03-05 | 1992-09-10 | Dainippon Ink & Chemicals | |
JPS61123859A (en) * | 1984-11-20 | 1986-06-11 | Fujitsu Ltd | Electrophotographic carrier |
JPH0424654A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0424655A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0424653A (en) * | 1990-05-18 | 1992-01-28 | Mita Ind Co Ltd | Two-component developer |
JPH0456966A (en) * | 1990-06-26 | 1992-02-24 | Mita Ind Co Ltd | Two-component developer |
JP2005072553A (en) * | 2003-08-05 | 2005-03-17 | Ricoh Co Ltd | Magnet compound material, magnet molding, developing magnet roller, developer, process cartridge, and image forming device |
JP4491251B2 (en) * | 2003-08-05 | 2010-06-30 | 株式会社リコー | Magnet compound material, magnet molding, developing magnet roller, developing device, process cartridge, and image forming apparatus |
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