JPS649475A - Multicolor image forming device - Google Patents
Multicolor image forming deviceInfo
- Publication number
- JPS649475A JPS649475A JP62165887A JP16588787A JPS649475A JP S649475 A JPS649475 A JP S649475A JP 62165887 A JP62165887 A JP 62165887A JP 16588787 A JP16588787 A JP 16588787A JP S649475 A JPS649475 A JP S649475A
- Authority
- JP
- Japan
- Prior art keywords
- developing
- gap
- sleeve
- developing unit
- executes
- 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
Landscapes
- Color Electrophotography (AREA)
Abstract
PURPOSE:To make the density of image plane and gradation proper even if any developing is executed by setting a gap between the developing sleeve of a developing unit which executes color developing and an image carrier smaller than a gap between the developing sleeve of a developing unit which executes black developing and the image carrier at the time of developing. CONSTITUTION:A developing device 10 is a two-color developing device and an upper developing unit 11A and a lower developing unit 11B are integrated and made to be rocked. When the motor of the developing unit selected in the selection of color specifying buttons is turned, a cam 13 fixed to a shaft 12 is turned with the turning of the motor. The cam 13 presses the abutting part 14A or 14B of the device 10 so as to rock the device 10 through a spring member 15 and the developing sleeve of the developing unit 11 is stopped with a small gap previously set between the developing sleeve and the surface of a drum 2. The gap between the developing sleeve of the developing unit 11A which executes the color developing and the drum 2 is set smaller than the gap between the developing sleeve of the developing unit 11B which executes the black developing and the drum 2 at the time of developing. Thus, the density of image plane and gradation can be made proper even if any developing is executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165887A JPS649475A (en) | 1987-07-01 | 1987-07-01 | Multicolor image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165887A JPS649475A (en) | 1987-07-01 | 1987-07-01 | Multicolor image forming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS649475A true JPS649475A (en) | 1989-01-12 |
Family
ID=15820865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165887A Pending JPS649475A (en) | 1987-07-01 | 1987-07-01 | Multicolor image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS649475A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0550577A (en) * | 1991-08-22 | 1993-03-02 | Tomoegawa Paper Co Ltd | Method and device for coating sheet |
JPH05124173A (en) * | 1991-10-31 | 1993-05-21 | Tomoegawa Paper Co Ltd | Method and apparatus for coating strip material |
-
1987
- 1987-07-01 JP JP62165887A patent/JPS649475A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0550577A (en) * | 1991-08-22 | 1993-03-02 | Tomoegawa Paper Co Ltd | Method and device for coating sheet |
JPH05124173A (en) * | 1991-10-31 | 1993-05-21 | Tomoegawa Paper Co Ltd | Method and apparatus for coating strip material |
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