JPS54143639A - Method and apparatus for electrophotographic developing - Google Patents
Method and apparatus for electrophotographic developingInfo
- Publication number
- JPS54143639A JPS54143639A JP5183278A JP5183278A JPS54143639A JP S54143639 A JPS54143639 A JP S54143639A JP 5183278 A JP5183278 A JP 5183278A JP 5183278 A JP5183278 A JP 5183278A JP S54143639 A JPS54143639 A JP S54143639A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- roller
- images
- developing
- electrostatic
- 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
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE: To prevent degradation of images and surely form the sensible images of good developed picture quality free from fog by applying electric field and removing the toner not contributing to development from a depositing means at the time of performing developing by opposing the toner depositing means to an electrostatic image substrate.
CONSTITUTION: Toner 17 is evenly coated with a blade 15 on a toner donating conductive roller 13 opposing to an electrostatic image holding member 12 and rotating at the same speed as that of said material and the toner layer 14 and electrostatic images are approached or contacted to develop. At this time, the residual toner not used for developing is recivered in a toner vessel 16 along with the rotation of the roller 13. Out of the residual toner, the one which remains on the roller 13 owing to lack of the electrostatic images may be reused by recovering this but the residual toner which did not contribute to developing despite the presence of the electrostatic images is low electric resistance toner or the toner having undesirable polarity charge. Here, the conductive rollers 191 thru 192 are disposed in proximity to the roller 13 before and behind the developing position and strong magnetic field is applied thereto to suck and remove the abovementioned undesirable toner on the conductive rollers 191...
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5183278A JPS54143639A (en) | 1978-04-28 | 1978-04-28 | Method and apparatus for electrophotographic developing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5183278A JPS54143639A (en) | 1978-04-28 | 1978-04-28 | Method and apparatus for electrophotographic developing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54143639A true JPS54143639A (en) | 1979-11-09 |
JPS6330626B2 JPS6330626B2 (en) | 1988-06-20 |
Family
ID=12897830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5183278A Granted JPS54143639A (en) | 1978-04-28 | 1978-04-28 | Method and apparatus for electrophotographic developing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143639A (en) |
-
1978
- 1978-04-28 JP JP5183278A patent/JPS54143639A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6330626B2 (en) | 1988-06-20 |
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