JPS5621155A - Color electrophotographic method - Google Patents
Color electrophotographic methodInfo
- Publication number
- JPS5621155A JPS5621155A JP9709579A JP9709579A JPS5621155A JP S5621155 A JPS5621155 A JP S5621155A JP 9709579 A JP9709579 A JP 9709579A JP 9709579 A JP9709579 A JP 9709579A JP S5621155 A JPS5621155 A JP S5621155A
- Authority
- JP
- Japan
- Prior art keywords
- red
- layer
- black
- exposure
- layers
- 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
- Photoreceptors In Electrophotography (AREA)
Abstract
PURPOSE: To make possible two or three color copying through one image exposure by using a photoreceptor laminated with three kinds of photoconductive layers of different photosensitive wavelengths.
CONSTITUTION: If a photoreceptor 1 laminated with three kinds of photoconductive layers 3W5 of different photosensitive wavelengths formed by amorphous selenium, eutectic complex of thiapyrilium salt and polycarbonate and β type copper phthalocyanine is subjected to red color irradiation and primary charging, the layers 3, 5 are made conductive, and positive and negative charges appear on the top and under of the layer 4 respectively. When it is next subjected to secondary charging in a dark place, the layers 3W5 are of high resistance in the dark; therefore the surface of the layer 5 and the boundary of the layer 3 and the conductive substrate 2 charge themselves to negative polarity. When image exposure is performed in this state, the surface potential of the layer 5 does not change with respect to the black image portion and the surface potential inverts to negative polarity only for the red image portion of the original, thus two color images of red and black are formed by the positive and negative charged red and black toners through one exposure. In a similar manner, the three color images of red, black and blue may be formed through one exposure without any image deviation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9709579A JPS5621155A (en) | 1979-07-30 | 1979-07-30 | Color electrophotographic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9709579A JPS5621155A (en) | 1979-07-30 | 1979-07-30 | Color electrophotographic method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5621155A true JPS5621155A (en) | 1981-02-27 |
| JPS6354185B2 JPS6354185B2 (en) | 1988-10-27 |
Family
ID=14183066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9709579A Granted JPS5621155A (en) | 1979-07-30 | 1979-07-30 | Color electrophotographic method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5621155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145008A (en) * | 2007-12-17 | 2009-07-02 | Daikin Ind Ltd | Air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514306Y2 (en) * | 1988-06-29 | 1993-04-16 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444529A (en) * | 1977-09-14 | 1979-04-09 | Ricoh Co Ltd | Multichromatic electrophotographic copying method |
-
1979
- 1979-07-30 JP JP9709579A patent/JPS5621155A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444529A (en) * | 1977-09-14 | 1979-04-09 | Ricoh Co Ltd | Multichromatic electrophotographic copying method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145008A (en) * | 2007-12-17 | 2009-07-02 | Daikin Ind Ltd | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6354185B2 (en) | 1988-10-27 |
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