JPS5573063A - Two color electrophotographic copying method - Google Patents
Two color electrophotographic copying methodInfo
- Publication number
- JPS5573063A JPS5573063A JP14699978A JP14699978A JPS5573063A JP S5573063 A JPS5573063 A JP S5573063A JP 14699978 A JP14699978 A JP 14699978A JP 14699978 A JP14699978 A JP 14699978A JP S5573063 A JPS5573063 A JP S5573063A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- layer
- color
- light
- photoconductive
- 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
Abstract
PURPOSE: To obtain good copied images of two colors by providing two layers of photoconductive layers of a layer having photosensitivity to two colors of light and a layer having no photosensitivity thereto to a photoreceptor, insulating these two layers, performing the specified photosensitive operations and using two kinds of the toners having been charged to mutually opposite polarities.
CONSTITUTION: A photoreceptor 1 is made by laminating the first photoconductive layer 12, transparent insulation layer 13, second photoconductive layer 14 and transparent insulation layer 15 on a conductive substrate 11. While the first photoconductive layer 12 has photosensitivity to A-color light, the second photoconductive layer 14 is insensitive to the A-color light. First, the photoreceptor 1 is radiated with white color light then with A-color light, and this enables the polarities such as the illustrated ones to be obtained in the photoconductive layers 12, 14, but the photoreceptor surface is destaticized next by being subjected to positive corona discharging in the dark by a charger 4. Next, the light images of the original 0 are exposed to the photoreceptor 1. Since white ground part OW, black color image OB and A-color image OA are stated on the original 0, the electrostatic latent images are visualized by the negatively charged black color toner and the positively charged A-color toner to obtain the TB image and TA image, which are then combined with the white color part, whereby the visible copied images of the two colors are obtainable.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14699978A JPS5573063A (en) | 1978-11-28 | 1978-11-28 | Two color electrophotographic copying method |
| US06/012,571 US4335194A (en) | 1978-02-20 | 1979-02-15 | Two color electrophotographic process and material |
| DE2906500A DE2906500C3 (en) | 1978-02-20 | 1979-02-20 | Electrophotographic process for making two-color records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14699978A JPS5573063A (en) | 1978-11-28 | 1978-11-28 | Two color electrophotographic copying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5573063A true JPS5573063A (en) | 1980-06-02 |
| JPS6245987B2 JPS6245987B2 (en) | 1987-09-30 |
Family
ID=15420292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14699978A Granted JPS5573063A (en) | 1978-02-20 | 1978-11-28 | Two color electrophotographic copying method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5573063A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833505A (en) * | 1987-01-23 | 1989-05-23 | Fuji Xerox Co., Ltd. | Latent image color developing system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062554Y2 (en) * | 1989-09-12 | 1994-01-26 | 重太郎 秋田 | Bird threatening equipment |
-
1978
- 1978-11-28 JP JP14699978A patent/JPS5573063A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833505A (en) * | 1987-01-23 | 1989-05-23 | Fuji Xerox Co., Ltd. | Latent image color developing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245987B2 (en) | 1987-09-30 |
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