JPS5675661A - Dry type two component reversal developing method - Google Patents
Dry type two component reversal developing methodInfo
- Publication number
- JPS5675661A JPS5675661A JP15325079A JP15325079A JPS5675661A JP S5675661 A JPS5675661 A JP S5675661A JP 15325079 A JP15325079 A JP 15325079A JP 15325079 A JP15325079 A JP 15325079A JP S5675661 A JPS5675661 A JP S5675661A
- Authority
- JP
- Japan
- Prior art keywords
- potential
- bias
- images
- developing
- dry type
- 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)
- Developing For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To obtain good reversal images by making the bias potential of developing bias lower by >=200V than the nonimage part potential and using a dry type two component reversal developing material contg. carriers of 250-400mu in grain size. CONSTITUTION:A photosensitive drum 1 which rotates in an arrow direction and is formed with electrostatic latent images on its surface by charging and exposure means is provided as an apparatus. A magnetic brush developing device 2 is disposed in the lower left part of this photosensitive drum, and the apparatus is so constituted that the electrostatic latent images on the drum 1 are developed by the magnetic brush of said device. With such apparatus, the relations between the grain sizes of the carriers and the carrier adhesion etc. on copying paper were meausred with the bias potential of developing bias as a parameter, and the results thereof revealed that good images are obtainable by making the bias potential lower by >=200V than the nonimage part potential and keeping carrier grain sizes at 250- 400mu.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15325079A JPS5675661A (en) | 1979-11-27 | 1979-11-27 | Dry type two component reversal developing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15325079A JPS5675661A (en) | 1979-11-27 | 1979-11-27 | Dry type two component reversal developing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5675661A true JPS5675661A (en) | 1981-06-22 |
JPS6326387B2 JPS6326387B2 (en) | 1988-05-30 |
Family
ID=15558341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15325079A Granted JPS5675661A (en) | 1979-11-27 | 1979-11-27 | Dry type two component reversal developing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5675661A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509820A (en) * | 1981-05-07 | 1985-04-09 | Nippon Telegraph & Telephone Public Corporation | Protective packaging assembly and method |
JPS6448077A (en) * | 1987-08-19 | 1989-02-22 | Konishiroku Photo Ind | Image forming method |
-
1979
- 1979-11-27 JP JP15325079A patent/JPS5675661A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509820A (en) * | 1981-05-07 | 1985-04-09 | Nippon Telegraph & Telephone Public Corporation | Protective packaging assembly and method |
JPS6448077A (en) * | 1987-08-19 | 1989-02-22 | Konishiroku Photo Ind | Image forming method |
Also Published As
Publication number | Publication date |
---|---|
JPS6326387B2 (en) | 1988-05-30 |
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