JPS54124734A - Magnetic brush developing device - Google Patents
Magnetic brush developing deviceInfo
- Publication number
- JPS54124734A JPS54124734A JP3214778A JP3214778A JPS54124734A JP S54124734 A JPS54124734 A JP S54124734A JP 3214778 A JP3214778 A JP 3214778A JP 3214778 A JP3214778 A JP 3214778A JP S54124734 A JPS54124734 A JP S54124734A
- Authority
- JP
- Japan
- Prior art keywords
- developing
- powder
- sleeve
- shield plates
- magnetic
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To surely prevent the mutual mixing of developing powders by disposing a plurality of developing powder containing vessels to a developing sleeve and providing shield plates. CONSTITUTION:A magnetic brush developing device 11 is constituted by a developing sleeve 51, a plurality of developing units 52 thru 54 disposed around the same and shield plates 101, 102, etc. turning about a fulcrum 103. Then, the yellow developing powder in the developing powder containing vessel 60 is attracted on the surface of the supply sleeve by magnetic force, after which it is built up in brush form by the magnet in the developing sleeve 51 and developing is thereby performed, during which time the openings of the magnetic powder developing vessels 70, 80 are shielded by the shield plates 101, 102 and the mutual mixing of the yellow developing powder with the magenta developing powder and cyan developing powder is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3214778A JPS54124734A (en) | 1978-03-20 | 1978-03-20 | Magnetic brush developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3214778A JPS54124734A (en) | 1978-03-20 | 1978-03-20 | Magnetic brush developing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54124734A true JPS54124734A (en) | 1979-09-27 |
JPS6232470B2 JPS6232470B2 (en) | 1987-07-15 |
Family
ID=12350782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3214778A Granted JPS54124734A (en) | 1978-03-20 | 1978-03-20 | Magnetic brush developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54124734A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021070A (en) * | 1983-07-15 | 1985-02-02 | Fuji Xerox Co Ltd | Developing device |
JPS61129665A (en) * | 1984-11-29 | 1986-06-17 | Canon Inc | Developing device |
JPS61133965A (en) * | 1984-12-05 | 1986-06-21 | Canon Inc | Developing device for multi-color image forming device |
US4754301A (en) * | 1985-11-18 | 1988-06-28 | Canon Kabushiki Kaisha | Multicolor image forming apparatus with a shutter to prevent mixture of developers in plural developing devices |
US7912407B2 (en) | 2007-12-28 | 2011-03-22 | Fuji Xerox Co., Ltd. | Developing unit, developing device and image forming apparatus for peeling off magnetic developer |
-
1978
- 1978-03-20 JP JP3214778A patent/JPS54124734A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021070A (en) * | 1983-07-15 | 1985-02-02 | Fuji Xerox Co Ltd | Developing device |
JPS61129665A (en) * | 1984-11-29 | 1986-06-17 | Canon Inc | Developing device |
JPS61133965A (en) * | 1984-12-05 | 1986-06-21 | Canon Inc | Developing device for multi-color image forming device |
US4754301A (en) * | 1985-11-18 | 1988-06-28 | Canon Kabushiki Kaisha | Multicolor image forming apparatus with a shutter to prevent mixture of developers in plural developing devices |
US7912407B2 (en) | 2007-12-28 | 2011-03-22 | Fuji Xerox Co., Ltd. | Developing unit, developing device and image forming apparatus for peeling off magnetic developer |
Also Published As
Publication number | Publication date |
---|---|
JPS6232470B2 (en) | 1987-07-15 |
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