JPS55103566A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS55103566A JPS55103566A JP1166279A JP1166279A JPS55103566A JP S55103566 A JPS55103566 A JP S55103566A JP 1166279 A JP1166279 A JP 1166279A JP 1166279 A JP1166279 A JP 1166279A JP S55103566 A JPS55103566 A JP S55103566A
- Authority
- JP
- Japan
- Prior art keywords
- main pole
- magnetic
- sleeve
- thickness
- blade
- 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
Abstract
PURPOSE: To make possible controlling of the thickness of developer layer by providing a means of controlling the relative opposing positions of a magnetic member which defines coating of magnetic developer on the surface of a developer support and the main pole position of magnet within the range where the magnetic force of the magnet acts.
CONSTITUTION: There is a main pole 2 in a stationary magnet roll 1 and is held enclosed by a non-magnetic sleeve 3. A blade 4 of magnetic material is disposed in opposition to the main pole 2 and plays the role of coating insulation-type magnetic toner 5 from a case 6 onto the sleeve 3 at an adequate thickness along with the revolution of the sleeve 3. Since changing the position of the blade 4 opposing to the main pole 2 to near the front edge, central part and rear half part of the main pole results in gradually increasing thickness of the toner layer being formed on the sleeve 3, the control of the thickness of the toner layer is made possible by changing the relative position of the blade 4 with respect to the main pole 2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1166279A JPS5931705B2 (en) | 1979-02-02 | 1979-02-02 | Toner layer thickness adjustment device |
GB8002775A GB2046634B (en) | 1979-02-02 | 1980-01-28 | Magnetic brush developer |
DE19803003692 DE3003692A1 (en) | 1979-02-02 | 1980-02-01 | DEVELOPMENT DEVICE |
US06/645,530 US4511239A (en) | 1979-02-02 | 1984-08-29 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1166279A JPS5931705B2 (en) | 1979-02-02 | 1979-02-02 | Toner layer thickness adjustment device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55103566A true JPS55103566A (en) | 1980-08-07 |
JPS5931705B2 JPS5931705B2 (en) | 1984-08-03 |
Family
ID=11784185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1166279A Expired JPS5931705B2 (en) | 1979-02-02 | 1979-02-02 | Toner layer thickness adjustment device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931705B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6073659A (en) * | 1983-09-30 | 1985-04-25 | Ricoh Co Ltd | Controller for layer thickness of magnetic particle |
JPS61138271A (en) * | 1984-12-11 | 1986-06-25 | Konishiroku Photo Ind Co Ltd | Developing device |
JPS61201279A (en) * | 1985-03-05 | 1986-09-05 | Konishiroku Photo Ind Co Ltd | Magnetic brush developing device |
-
1979
- 1979-02-02 JP JP1166279A patent/JPS5931705B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6073659A (en) * | 1983-09-30 | 1985-04-25 | Ricoh Co Ltd | Controller for layer thickness of magnetic particle |
JPH0535430B2 (en) * | 1983-09-30 | 1993-05-26 | Ricoh Kk | |
JPS61138271A (en) * | 1984-12-11 | 1986-06-25 | Konishiroku Photo Ind Co Ltd | Developing device |
JPH0552943B2 (en) * | 1984-12-11 | 1993-08-06 | Konishiroku Photo Ind | |
JPS61201279A (en) * | 1985-03-05 | 1986-09-05 | Konishiroku Photo Ind Co Ltd | Magnetic brush developing device |
JPH0582582B2 (en) * | 1985-03-05 | 1993-11-19 | Konishiroku Photo Ind |
Also Published As
Publication number | Publication date |
---|---|
JPS5931705B2 (en) | 1984-08-03 |
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