JPS5458444A - Electrophotographic dichromatic reproducing method - Google Patents
Electrophotographic dichromatic reproducing methodInfo
- Publication number
- JPS5458444A JPS5458444A JP12493477A JP12493477A JPS5458444A JP S5458444 A JPS5458444 A JP S5458444A JP 12493477 A JP12493477 A JP 12493477A JP 12493477 A JP12493477 A JP 12493477A JP S5458444 A JPS5458444 A JP S5458444A
- Authority
- JP
- Japan
- Prior art keywords
- black
- red
- photoreceptor
- latent image
- image corresponding
- 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.)
- Pending
Links
Abstract
PURPOSE: To enable black image to be reproduced with high purity and sharpness by changing the polarity or potential of the latent image corresponding to the black color part of the original formed on a photoreceptor by using a specific roller.
CONSTITUTION: The surface of the photoconductive layer 1b of a photoreceptor 1 is charged to + by a corona charger 2. Next, a dichromatic original 3 having white part 3a, red part 3b, black part 3c is radiated to the photoreceptor 1 by lamps 4, 5 via red filter 6, whereby the latent image corresponding to the black part is formed. A roller 7 which has - potential is contacted to the photoreceptor surface, by which the regions corresponding to the white part where there is no potential and the red part are charged to - and the potential of the latent image corresponding to the black part decreases. Next, the original 3 is radiated via cyan color filter 8, whereby the latent image corresponding to the red part is newly formed on the photoreceptor 1 surface. The red toner 9 charged to + and the black toner 10 charged to - are supplied to the latent image corresponding to the black part of + polarity, whereby the red image and black image of the original are reproduced
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12493477A JPS5458444A (en) | 1977-10-18 | 1977-10-18 | Electrophotographic dichromatic reproducing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12493477A JPS5458444A (en) | 1977-10-18 | 1977-10-18 | Electrophotographic dichromatic reproducing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5458444A true JPS5458444A (en) | 1979-05-11 |
Family
ID=14897775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12493477A Pending JPS5458444A (en) | 1977-10-18 | 1977-10-18 | Electrophotographic dichromatic reproducing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5458444A (en) |
-
1977
- 1977-10-18 JP JP12493477A patent/JPS5458444A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5456445A (en) | Dichromatic electrophotographic copier | |
JPS5430043A (en) | Copier acting as facsimile | |
EP0140011A3 (en) | Electrophotographic apparatus including a photoconductor belt | |
JPS5583070A (en) | Non-impact print method | |
JPS5458444A (en) | Electrophotographic dichromatic reproducing method | |
JPS54155840A (en) | Developing method in two color electrophotographic copier | |
JPS5652760A (en) | Dichromic electrophotographic method | |
JPS5511226A (en) | Electrostatic latent image developing method | |
JPS5576360A (en) | Dry development system | |
JPS5444531A (en) | Electrophotographic dichromatic copying method | |
JPS5557864A (en) | Developing method of electrophotography | |
JPS547338A (en) | Two-color electrophotographic copying method | |
JPS5459140A (en) | Electrophotographic dichromatic reproducing method | |
JPS5462830A (en) | Two-color electrophotographic copying method | |
JPS54147040A (en) | Two color electrophotographic method | |
JPS547337A (en) | Two-color copying method | |
JPS54137345A (en) | Development for dichronic zerography | |
JPS55100573A (en) | Multicolor electrophotographic copying method | |
JPS5536815A (en) | Two color image forming method | |
JPS54143139A (en) | Copying method for dichroic zerography | |
JPS55110260A (en) | Two-color electrophotographic copying method | |
JPS5444530A (en) | Electrophotographic dichromatic copying method | |
JPS57101855A (en) | Two color copying method | |
JPS5635152A (en) | Copying method | |
JPS5543532A (en) | Two color electrophotographic copying method |