JPS5557864A - Developing method of electrophotography - Google Patents
Developing method of electrophotographyInfo
- Publication number
- JPS5557864A JPS5557864A JP12944378A JP12944378A JPS5557864A JP S5557864 A JPS5557864 A JP S5557864A JP 12944378 A JP12944378 A JP 12944378A JP 12944378 A JP12944378 A JP 12944378A JP S5557864 A JPS5557864 A JP S5557864A
- Authority
- JP
- Japan
- Prior art keywords
- development
- carrier
- chromatic color
- black
- region
- 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.)
- Pending
Links
Abstract
PURPOSE:To obtain good two color images by using conductive carrier for the carrier of the first chromatic color developer and making the potentials after the development of the regions of the photoreceptor corresponding to the first chromatic color less than the development start voltage. CONSTITUTION:Arrangement is so made that the residual potentials of the region a' corresponding to the first chromatic color, e.g., black, become less than the development start voltage V' after the first development. Because of this, conductive carrier is used for the carrier of the first chromatic color developer, i.e., black color developer, by which the latent image potential leakage from the carrier is increased at the first developing to reduce the residual potentials. As a result, at the time of the second development, the red toner of the second chromatic color deposits only on the region b' corresponding to red and does not depost in the region a' corresponding to black at the second developing. In this way, the good two color images may be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944378A JPS5557864A (en) | 1978-10-23 | 1978-10-23 | Developing method of electrophotography |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12944378A JPS5557864A (en) | 1978-10-23 | 1978-10-23 | Developing method of electrophotography |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5557864A true JPS5557864A (en) | 1980-04-30 |
Family
ID=15009585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12944378A Pending JPS5557864A (en) | 1978-10-23 | 1978-10-23 | Developing method of electrophotography |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557864A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5720744A (en) * | 1980-07-15 | 1982-02-03 | Hitachi Ltd | Method for dichromic electrophotography |
JPS57188061A (en) * | 1981-05-15 | 1982-11-18 | Hitachi Ltd | Electrophotographing device |
-
1978
- 1978-10-23 JP JP12944378A patent/JPS5557864A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5720744A (en) * | 1980-07-15 | 1982-02-03 | Hitachi Ltd | Method for dichromic electrophotography |
JPS6354184B2 (en) * | 1980-07-15 | 1988-10-27 | Hitachi Ltd | |
JPS57188061A (en) * | 1981-05-15 | 1982-11-18 | Hitachi Ltd | Electrophotographing device |
JPS6356542B2 (en) * | 1981-05-15 | 1988-11-08 | Hitachi Ltd |
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