JPS55124155A - Two-color electrophotographic copying method - Google Patents
Two-color electrophotographic copying methodInfo
- Publication number
- JPS55124155A JPS55124155A JP3208179A JP3208179A JPS55124155A JP S55124155 A JPS55124155 A JP S55124155A JP 3208179 A JP3208179 A JP 3208179A JP 3208179 A JP3208179 A JP 3208179A JP S55124155 A JPS55124155 A JP S55124155A
- Authority
- JP
- Japan
- Prior art keywords
- color
- photoconductive layer
- image
- sensitivity
- red
- 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 correct two-color copies by exposing the photoconductive layer of higher sensitivity through a filter when there is a density in the image of a two- color original.
CONSTITUTION: When the 1st photoconductive layer 11 is higher in sensitivity in a photoreceptor, it is so constituted that, at the time of performing exposure by the light image of a two-color original, the exposure is done by using a filter which cuts off part of, e.g., red-color light. Thence, the red-color light entering the 1st photoconductive layer decreases, hence the photoconductive effect decreases as well. This becomes substantially the decrease in the sensitivity in the 1st photoconductive layer 11 and by doing in this way, the sensitivity difference from the 2nd photoconductive layer 12 may be decreased to the extent of becoming no problems. Hence, such as abnormality that the gray-color portion at the intermediate part of the image is copied as a red-color image may be eliminated and the correct two-color copying may be done.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3208179A JPS55124155A (en) | 1979-03-19 | 1979-03-19 | Two-color electrophotographic copying method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3208179A JPS55124155A (en) | 1979-03-19 | 1979-03-19 | Two-color electrophotographic copying method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55124155A true JPS55124155A (en) | 1980-09-25 |
JPS6249624B2 JPS6249624B2 (en) | 1987-10-20 |
Family
ID=12348922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3208179A Granted JPS55124155A (en) | 1979-03-19 | 1979-03-19 | Two-color electrophotographic copying method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55124155A (en) |
-
1979
- 1979-03-19 JP JP3208179A patent/JPS55124155A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6249624B2 (en) | 1987-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5583069A (en) | Non-impact printer | |
JPS5443026A (en) | Method and apparatus foe electrophotography | |
ES8306267A1 (en) | Photosensitive relief image-forming materials and method of forming relief images using same. | |
JPS55124155A (en) | Two-color electrophotographic copying method | |
JPS6075846A (en) | Electrophotographic method | |
JPS5782848A (en) | Electrophotographing method | |
JPS53121623A (en) | Dichromatic electrophotographic copying method | |
JPS5642242A (en) | Electrophotographic method | |
JPS56113160A (en) | Electrophotographic method | |
JPS5417846A (en) | Dichromatic electrophotographic copying method | |
JPS5557852A (en) | Overlap-forming method of electrostatic latent image | |
JPS64968A (en) | Exposure amount setting device | |
JPS5340526A (en) | Electrophotographic copy method | |
JPS5497428A (en) | Reversal development transfer type electrophotographic copying method | |
JPS5622436A (en) | Two color multisheet electrophotographic copying method | |
JPS5538538A (en) | Developing method in two color electrophotographic copying system | |
JPS55124154A (en) | Electrophotographic method | |
JPS5782849A (en) | Electrophotographing method | |
JPS5695266A (en) | Photoreceptor exposing method in color electrophotographic system | |
JPS54149646A (en) | Partially coloring zerography and apparatus therefor | |
JPS53130036A (en) | Toner for electrical latent image | |
JPS5727273A (en) | Image synthesizing and copying method | |
JPS5655961A (en) | Electrostatic printing method | |
JPS5782852A (en) | Color copying method | |
JPS5424636A (en) | Electrophotographic photoreceptor |