JPS5496034A - Electrophotographic toner - Google Patents
Electrophotographic tonerInfo
- Publication number
- JPS5496034A JPS5496034A JP313578A JP313578A JPS5496034A JP S5496034 A JPS5496034 A JP S5496034A JP 313578 A JP313578 A JP 313578A JP 313578 A JP313578 A JP 313578A JP S5496034 A JPS5496034 A JP S5496034A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- pts
- conductivity
- carbon black
- porous carbon
- 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 enable static transfer a one component type toner image and to facilitate preparation, by adding a specified porous carbon black to a binder resin.
CONSTITUTION: A porous carbon black having a surface area of 850 m2/g or more, preferably 900W1200 m2/g by the nitrogen absorption method and a DBP absorption capacity of 280 ml/g or more, preferably 300W400 ml/g is mixed and dispersed in a binder resin together with ferromagnetic particles in an amount of 3W30 wt. pts., preferably 4W10 wt. pts. per 100 wt. pts. of binder to compose a toner. This toner has preferably a conductivity of 10-4W10-7(ohm.cm)-1, and an absolute value of surface potential of a toner layer on a sleeve surface is preferably above 20 V, and development and static transfer are effected by using triboelectricity of the toner itself and induced charge caused by the conductivity of the toner.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53003135A JPS6033264B2 (en) | 1978-01-13 | 1978-01-13 | Toner for electrophotography |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53003135A JPS6033264B2 (en) | 1978-01-13 | 1978-01-13 | Toner for electrophotography |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5496034A true JPS5496034A (en) | 1979-07-30 |
JPS6033264B2 JPS6033264B2 (en) | 1985-08-01 |
Family
ID=11548901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53003135A Expired JPS6033264B2 (en) | 1978-01-13 | 1978-01-13 | Toner for electrophotography |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033264B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61203463A (en) * | 1985-03-06 | 1986-09-09 | Minolta Camera Co Ltd | Toner |
JPH04178653A (en) * | 1990-11-14 | 1992-06-25 | Tomoegawa Paper Co Ltd | Electrically conductive magnetic toner |
-
1978
- 1978-01-13 JP JP53003135A patent/JPS6033264B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61203463A (en) * | 1985-03-06 | 1986-09-09 | Minolta Camera Co Ltd | Toner |
JPH04178653A (en) * | 1990-11-14 | 1992-06-25 | Tomoegawa Paper Co Ltd | Electrically conductive magnetic toner |
Also Published As
Publication number | Publication date |
---|---|
JPS6033264B2 (en) | 1985-08-01 |
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