JPS54147040A - Two color electrophotographic method - Google Patents
Two color electrophotographic methodInfo
- Publication number
- JPS54147040A JPS54147040A JP5578978A JP5578978A JPS54147040A JP S54147040 A JPS54147040 A JP S54147040A JP 5578978 A JP5578978 A JP 5578978A JP 5578978 A JP5578978 A JP 5578978A JP S54147040 A JPS54147040 A JP S54147040A
- Authority
- JP
- Japan
- Prior art keywords
- images
- color
- red
- charged
- photoconductive layer
- 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 two color electrophotographic images of distinct black images by using the photoreceptor comprising laminating a first photoconductive layer which is not sensititve to A color light and a second photoconductive layer which is sensitive to A color light on a conductive substrate and developing after letting the same be charged by the specific method.
CONSTITUTION: The photoreceptor obtained by laminating a first photoconductive layer 1b which is not sensitive to red (A color) light and a second photoconductive layer 1c which is sensitive to at least red color light on a conductive substrate 1a of used. The photoconductive surface is charged negative (at the same time positive charges are captured at the interface of 1c and 1b) (1); next, it is charged positive with the charge quantity less than the abovementioned charges to decrease the negative potential of the photoreceptor surface (2); after this, the light images of the original 4 composed of white ground 4a, black images 4b, red images 4c are radiated to the photoreceptor surface to form the latent imates of negative, positive and zero potentials corresponding respectively to the black color images, red color images and white ground (3); thence these are developed (4) by using positively charged black toner 5, negatively charged red toner 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53055789A JPS6028352B2 (en) | 1978-05-10 | 1978-05-10 | Two-color electrophotography method |
| US06/033,316 US4310610A (en) | 1978-04-27 | 1979-04-25 | Two color electrostatographic process |
| DE19792953712 DE2953712C1 (en) | 1978-04-27 | 1979-04-27 | Record carrier for the electrophotographic production of two-color recordings and method for the electrophotographic production of two-color recordings with such a record carrier |
| DE2954302A DE2954302C1 (en) | 1978-04-27 | 1979-04-27 | Recording material for the electrophotographic production of two-color recordings and method for the electrophotographic production of two-color recordings with such a recording material |
| DE2917228A DE2917228C2 (en) | 1978-04-27 | 1979-04-27 | Electrophotographic process for making two-color records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53055789A JPS6028352B2 (en) | 1978-05-10 | 1978-05-10 | Two-color electrophotography method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54147040A true JPS54147040A (en) | 1979-11-16 |
| JPS6028352B2 JPS6028352B2 (en) | 1985-07-04 |
Family
ID=13008668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53055789A Expired JPS6028352B2 (en) | 1978-04-27 | 1978-05-10 | Two-color electrophotography method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028352B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143452A (en) * | 1980-04-10 | 1981-11-09 | Ricoh Co Ltd | Two-color electrophotographic copying method |
| JPH0585395U (en) * | 1992-04-16 | 1993-11-19 | 株式会社ナカムラ | Clothes line |
-
1978
- 1978-05-10 JP JP53055789A patent/JPS6028352B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143452A (en) * | 1980-04-10 | 1981-11-09 | Ricoh Co Ltd | Two-color electrophotographic copying method |
| JPH0585395U (en) * | 1992-04-16 | 1993-11-19 | 株式会社ナカムラ | Clothes line |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6028352B2 (en) | 1985-07-04 |
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