JPS6463976A - Binary system electrophotographic color developer - Google Patents
Binary system electrophotographic color developerInfo
- Publication number
- JPS6463976A JPS6463976A JP62220785A JP22078587A JPS6463976A JP S6463976 A JPS6463976 A JP S6463976A JP 62220785 A JP62220785 A JP 62220785A JP 22078587 A JP22078587 A JP 22078587A JP S6463976 A JPS6463976 A JP S6463976A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- toner
- carrier
- white
- picture image
- 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
- G03G9/1132—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
- G03G9/097—Plasticisers; Charge controlling agents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Color Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To prevent color stain, to stabilize the degree of electrical charge of a developer, to enhance picture image density, and to improve the unformity of solid part by adopting silicone resin for a covering resin of a carrier and a white electroconductive material for fine electroconductive powder. CONSTITUTION:A silicone resin is adopted for a covering resin of a carrier and a white electroconductive material is adopted for fine electroconductive powder. A developer is prepd. by kneading the white electroconductive particles in a toner, and/or by adding the white electroconductive particles to the toner and carrier at the same time of mixing the toner with the carrier. A picture image having high picture image density, satisfactory uniformity of solid part, providing conscientiously printed matters to a copy without causing edge effect is obtd. by adding fine powder of the white electroconductive material to a developer and controlling the quality of electric charge by controlling the resistance of a toner and/or a developer appropriately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220785A JPS6463976A (en) | 1987-09-03 | 1987-09-03 | Binary system electrophotographic color developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220785A JPS6463976A (en) | 1987-09-03 | 1987-09-03 | Binary system electrophotographic color developer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6463976A true JPS6463976A (en) | 1989-03-09 |
Family
ID=16756534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62220785A Pending JPS6463976A (en) | 1987-09-03 | 1987-09-03 | Binary system electrophotographic color developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6463976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010217441A (en) * | 2009-03-16 | 2010-09-30 | Ricoh Co Ltd | Electrostatic charge image developing developer, developing device, image forming apparatus, image forming method and process cartridge |
-
1987
- 1987-09-03 JP JP62220785A patent/JPS6463976A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010217441A (en) * | 2009-03-16 | 2010-09-30 | Ricoh Co Ltd | Electrostatic charge image developing developer, developing device, image forming apparatus, image forming method and process cartridge |
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