JPS5643644A - Electrostatic latent image developer - Google Patents
Electrostatic latent image developerInfo
- Publication number
- JPS5643644A JPS5643644A JP11876579A JP11876579A JPS5643644A JP S5643644 A JPS5643644 A JP S5643644A JP 11876579 A JP11876579 A JP 11876579A JP 11876579 A JP11876579 A JP 11876579A JP S5643644 A JPS5643644 A JP S5643644A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- additive
- toner
- resin
- latent 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.)
- Granted
Links
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To obtain an electrostatic latent image developer having long service life and high quality types, by coating a conductive resin of same triboelectric series as a toner on the whole surfaces of magnetic particles.
CONSTITUTION: The whole surface of each magnetic particle 1 is coated with conductive resin 2 to prepare additive 3. An ion dissociating type quaternary ammonium resin or a carbon black dispersed polymer resin is used for resin 2. Additive 3 is introduced between carrier 4 of a developer and toner 5, and lowers a resistance value of the developer. High quality development free from inside whitening can be carried out by developing an electrostatic latent image with the developer containing additive 3. Even when particle 1 is large, its surface can be made conductive, so its magnetic force can be strengthened. As a result, additive 3 can be prevented together with the toner during development from consumption. Since toner 5 does not attach to additive 3, a service life of the developer can be extended.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54118765A JPS597383B2 (en) | 1979-09-18 | 1979-09-18 | electrostatic latent image developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54118765A JPS597383B2 (en) | 1979-09-18 | 1979-09-18 | electrostatic latent image developer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5643644A true JPS5643644A (en) | 1981-04-22 |
JPS597383B2 JPS597383B2 (en) | 1984-02-17 |
Family
ID=14744501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54118765A Expired JPS597383B2 (en) | 1979-09-18 | 1979-09-18 | electrostatic latent image developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS597383B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5840557A (en) * | 1981-09-03 | 1983-03-09 | Canon Inc | Electrophotographic developer |
-
1979
- 1979-09-18 JP JP54118765A patent/JPS597383B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5840557A (en) * | 1981-09-03 | 1983-03-09 | Canon Inc | Electrophotographic developer |
JPH0149941B2 (en) * | 1981-09-03 | 1989-10-26 | Canon Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS597383B2 (en) | 1984-02-17 |
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