JPS644771A - Image forming method - Google Patents
Image forming methodInfo
- Publication number
- JPS644771A JPS644771A JP62159816A JP15981687A JPS644771A JP S644771 A JPS644771 A JP S644771A JP 62159816 A JP62159816 A JP 62159816A JP 15981687 A JP15981687 A JP 15981687A JP S644771 A JPS644771 A JP S644771A
- Authority
- JP
- Japan
- Prior art keywords
- developing unit
- gear
- carrier means
- gears
- scale
- 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 enhance the stabilization of an image quality, to improve reliability and to scale-down a device by constituting a carrier means including a gear which gears into a rack cut on the lower surface of a developing unit and a motor which drives to rotate the gear. CONSTITUTION:The carrier means M1 and M2 are constituted, including the gears 12 and 14 which gear into the rack 11 cut on the lower surface of the developing unit 2A and the motors 13 and 15 which drive to rotate them. Namely, the carrier means M1 and M2 are provided by superposed on the developing unit on the lower side of the developing unit 2A. And a black developing unit 3 which uses one component type magnetic toner is provided on the upper side and a color developing unit 2A which uses two component type nonmagnetic toner is provided on the lower side. Thus, the lowering of the image density caused by the dark decay of a photosensitive body, the damage of a sleeve and malfunction following the drop of carrier, and also the occurrence of white stripes can be prevented, then the scale-down of the device main body can be possible.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159816A JPS644771A (en) | 1987-06-29 | 1987-06-29 | Image forming method |
EP87309441A EP0266946B1 (en) | 1986-10-28 | 1987-10-26 | Developing device accommodating apparatus and image forming apparatus and developing device |
DE19873783867 DE3783867T2 (en) | 1986-10-28 | 1987-10-26 | ADAPTING DEVICE FOR A DEVELOPMENT DEVICE AND IMAGING DEVICE AND DEVELOPMENT DEVICE. |
US07/289,521 US4941018A (en) | 1986-10-28 | 1988-12-27 | Developing device accommodating apparatus and image forming apparatus and developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159816A JPS644771A (en) | 1987-06-29 | 1987-06-29 | Image forming method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644771A true JPS644771A (en) | 1989-01-09 |
Family
ID=15701874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62159816A Pending JPS644771A (en) | 1986-10-28 | 1987-06-29 | Image forming method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644771A (en) |
-
1987
- 1987-06-29 JP JP62159816A patent/JPS644771A/en active Pending
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