JPS5499631A - Two color image forming method - Google Patents
Two color image forming methodInfo
- Publication number
- JPS5499631A JPS5499631A JP575278A JP575278A JPS5499631A JP S5499631 A JPS5499631 A JP S5499631A JP 575278 A JP575278 A JP 575278A JP 575278 A JP575278 A JP 575278A JP S5499631 A JPS5499631 A JP S5499631A
- Authority
- JP
- Japan
- Prior art keywords
- color image
- black color
- surface potential
- region corresponding
- red color
- 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 distinct two color images free from mixed colors by forming a red color image on a three layer structure photoreceptor then performing AC destaticizing and generating only the surface potential of the black color image part by the subsequent entire surface exposure process thereby performing black color developing.
CONSTITUTION: The surface potential of a red color image after development shows a fairly large value. Thereupon, when AC destaticizing is performed, the charges of the region corresponding to the red color part becomes like Fig. (e) and the positive charges on a transparent dielectric layer 2 are redistributed between photoconductive layers 4, thus the surface potential becomes zero. Next, a high surface potential is generated as shown in Fig. (g) on the photoreceptor of the region corresponding to the black color part by the process (f) of the entire surface exposure. Because of this, if a suitable bias voltage is applied and black color development is performed, there is no deposition of black color toner on the red color image part and only the region corresponding to the black color part is developed, thus the two color images having distinct colors may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP575278A JPS5499631A (en) | 1978-01-24 | 1978-01-24 | Two color image forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP575278A JPS5499631A (en) | 1978-01-24 | 1978-01-24 | Two color image forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5499631A true JPS5499631A (en) | 1979-08-06 |
Family
ID=11619839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP575278A Pending JPS5499631A (en) | 1978-01-24 | 1978-01-24 | Two color image forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5499631A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147760A (en) * | 1982-02-26 | 1983-09-02 | Toshiba Corp | Image formation device |
| JPS59172658A (en) * | 1983-03-23 | 1984-09-29 | Fuji Xerox Co Ltd | Dichroic electrophotographic method |
| JPS6247063A (en) * | 1985-08-23 | 1987-02-28 | Konishiroku Photo Ind Co Ltd | Method and device for forming image |
| JPS6247064A (en) * | 1985-08-23 | 1987-02-28 | Konishiroku Photo Ind Co Ltd | Image forming device |
| JPS6252575A (en) * | 1985-08-30 | 1987-03-07 | Konishiroku Photo Ind Co Ltd | Image forming device |
-
1978
- 1978-01-24 JP JP575278A patent/JPS5499631A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147760A (en) * | 1982-02-26 | 1983-09-02 | Toshiba Corp | Image formation device |
| JPH0330865B2 (en) * | 1982-02-26 | 1991-05-01 | Tokyo Shibaura Electric Co | |
| JPS59172658A (en) * | 1983-03-23 | 1984-09-29 | Fuji Xerox Co Ltd | Dichroic electrophotographic method |
| JPS6247063A (en) * | 1985-08-23 | 1987-02-28 | Konishiroku Photo Ind Co Ltd | Method and device for forming image |
| JPS6247064A (en) * | 1985-08-23 | 1987-02-28 | Konishiroku Photo Ind Co Ltd | Image forming device |
| JPH0442671B2 (en) * | 1985-08-23 | 1992-07-14 | Konishiroku Photo Ind | |
| JPS6252575A (en) * | 1985-08-30 | 1987-03-07 | Konishiroku Photo Ind Co Ltd | Image forming device |
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