JPS5612657A - Electrophotographic method and its apparatus - Google Patents
Electrophotographic method and its apparatusInfo
- Publication number
- JPS5612657A JPS5612657A JP8893979A JP8893979A JPS5612657A JP S5612657 A JPS5612657 A JP S5612657A JP 8893979 A JP8893979 A JP 8893979A JP 8893979 A JP8893979 A JP 8893979A JP S5612657 A JPS5612657 A JP S5612657A
- Authority
- JP
- Japan
- Prior art keywords
- image
- forming element
- image forming
- red
- latent
- 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
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Abstract
PURPOSE: To enable one of latent images to be erased and an optional image to be reproduced, by exposing part of a photoconductive layer with 2 latent images reverse in polarity to each other fromed and both charges distributed, using the color light to which only said part is sensitive.
CONSTITUTION: Two-color copying process is conducted by turning off blue lamp 26 arranged on the right side of image forming element 25. Photosensitive belt 12 is stopped, optical system 20 is moved to left, a two-color original placed on original platen 18 is illuminated with white light source 22 through red filter 21, at the same time belt 12 is successively subjected to positive primary charging with primary charger 23, and negative secondary charging with secondary charger 24, and image- wise exposure with exposing lamps 27, 28 and image forming element 25 to form a positive latent image corresponding to the red part, and a negative latent image corresponding to the black part. In order to form an image with the red image erased, blue lamp 26 arranged on the right side of image forming element 25 is turned on and similar processing is conducted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8893979A JPS5612657A (en) | 1979-07-13 | 1979-07-13 | Electrophotographic method and its apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8893979A JPS5612657A (en) | 1979-07-13 | 1979-07-13 | Electrophotographic method and its apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5612657A true JPS5612657A (en) | 1981-02-07 |
JPS6251467B2 JPS6251467B2 (en) | 1987-10-30 |
Family
ID=13956846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8893979A Granted JPS5612657A (en) | 1979-07-13 | 1979-07-13 | Electrophotographic method and its apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612657A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6167066A (en) * | 1984-09-10 | 1986-04-07 | Matsushita Electric Ind Co Ltd | Copying machine |
-
1979
- 1979-07-13 JP JP8893979A patent/JPS5612657A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6167066A (en) * | 1984-09-10 | 1986-04-07 | Matsushita Electric Ind Co Ltd | Copying machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6251467B2 (en) | 1987-10-30 |
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