JPS5593177A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS5593177A JPS5593177A JP89079A JP89079A JPS5593177A JP S5593177 A JPS5593177 A JP S5593177A JP 89079 A JP89079 A JP 89079A JP 89079 A JP89079 A JP 89079A JP S5593177 A JPS5593177 A JP S5593177A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- sleeve
- magnet
- doctor blade
- opposition
- 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)
Abstract
PURPOSE: To let the images of good and homogeneous quality be obtained by fixedly providing a magnetic doctor blade in proximity to the surface of a rotating non- magnetic cylindrical sleeve in opposition to the polar position of an internal stationary magnet, in the developing device using one-component magnetic developer.
CONSTITUTION: A magnet 9 is fixedly provided in the non-magnetic cylindrical sleeve 9 provided in opposition to a photosensitive drum 1 and a doctor blade 10 composed of magnetic material is fixedly provided in proximity to the surface of the sleeve 8 of the position opposing to the polar position of said stationary magnet 9. Since the end width A of the doctor blade 10 opposing to the sleeve 8 surface is constituted smaller than the magnetic pole width B of the magnet in the sleeve, magnetic lines of force concentrate in the magnetic material blade 10 and the toner layer defining is made effective by this magnetic force, thus good development is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP89079A JPS5933916B2 (en) | 1979-01-06 | 1979-01-06 | Toner layer forming device |
US06/108,058 US4391512A (en) | 1979-01-06 | 1979-12-28 | Developing device using magnetic developer |
DE19803000195 DE3000195A1 (en) | 1979-01-06 | 1980-01-04 | DEVELOPMENT DEVICE FOR MAGNET DEVELOPERS |
GB8000448A GB2045114B (en) | 1979-01-06 | 1980-01-07 | Magnetic brush |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP89079A JPS5933916B2 (en) | 1979-01-06 | 1979-01-06 | Toner layer forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593177A true JPS5593177A (en) | 1980-07-15 |
JPS5933916B2 JPS5933916B2 (en) | 1984-08-18 |
Family
ID=11486267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP89079A Expired JPS5933916B2 (en) | 1979-01-06 | 1979-01-06 | Toner layer forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5933916B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5863964A (en) * | 1981-10-14 | 1983-04-16 | Ricoh Co Ltd | Developing device |
-
1979
- 1979-01-06 JP JP89079A patent/JPS5933916B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5863964A (en) * | 1981-10-14 | 1983-04-16 | Ricoh Co Ltd | Developing device |
Also Published As
Publication number | Publication date |
---|---|
JPS5933916B2 (en) | 1984-08-18 |
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