JPS5689773A - Developing and cleaning device - Google Patents
Developing and cleaning deviceInfo
- Publication number
- JPS5689773A JPS5689773A JP16683179A JP16683179A JPS5689773A JP S5689773 A JPS5689773 A JP S5689773A JP 16683179 A JP16683179 A JP 16683179A JP 16683179 A JP16683179 A JP 16683179A JP S5689773 A JPS5689773 A JP S5689773A
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- magnetic
- conductive
- layer
- shield body
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To improve cleaning performance without obstruction to developing capability, by providing an insulating coating layer on the surface of a conductive nonmagnetic shield body and by providing a conductive nonmagnetic substance layer on this insulating coating layer to constitute a sleeve. CONSTITUTION:Insulating coating layer 8 is provided on the surface of conductive nonmagnetic shield body 4 provided on the outside circumference of the magnet, and conductive nonmagnetic substance layer 10 is coated on this layer 8, thereby obtaining a magnetic suction means. This magnetic suction means is arranged at a prescribed interval from the drum surface; and at the development time, the earth or the bias is applied to outside magnetic substance coating layer 10, and electric charge is injected to the conductive magnetic toner to perform development; and at the cleaning time, outside nonmagnetic substance coating layer 10 is insulated from the earth, and the magnetic toner is sucked and removed from the recording material surface due to magnetic force and electrostatic force by the bias voltage applied to the nonmagnetic shield body. As a result, the device used for cleaning also is performed where the cleaning performance is improved without obstruction to developing capability.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16683179A JPS5689773A (en) | 1979-12-24 | 1979-12-24 | Developing and cleaning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16683179A JPS5689773A (en) | 1979-12-24 | 1979-12-24 | Developing and cleaning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5689773A true JPS5689773A (en) | 1981-07-21 |
JPS6337390B2 JPS6337390B2 (en) | 1988-07-25 |
Family
ID=15838460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16683179A Granted JPS5689773A (en) | 1979-12-24 | 1979-12-24 | Developing and cleaning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5689773A (en) |
-
1979
- 1979-12-24 JP JP16683179A patent/JPS5689773A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6337390B2 (en) | 1988-07-25 |
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