JPS55151674A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS55151674A JPS55151674A JP6078479A JP6078479A JPS55151674A JP S55151674 A JPS55151674 A JP S55151674A JP 6078479 A JP6078479 A JP 6078479A JP 6078479 A JP6078479 A JP 6078479A JP S55151674 A JPS55151674 A JP S55151674A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- turning
- positioning
- opposes
- plunger
- 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
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
PURPOSE: To make possible always even coating by effectively changing the intensity of the magnetic field acting upon the thickness defining means of the developer.
CONSTITUTION: When the signal for fixing a magnet 12 is emitted from a control circuit 14 by button operation, a plunger 17 is retreated and a positioning magnet 15 opposes to a toner supporting member 10. At this time, the magnet 12 stops turning as well and so stops that its opposite magnetic pole comes to the position where it opposes to the magnet 15 by the action of the magnetic force of the positioning magnet 15. When the signal for turning the magnet 12 is emitted from the control circuit 14 by button operation, the magnet 12 starts turning and the plunger 16 is released. Then, the force of a spring 18 causes the positioning magnet 15 to go away from the toner supporting member 10 as shown by the broken line and the magnet 12 can turn smoothly. Therefore, the magnet 12 is driven to rotate by a motor 13 to effectively change the intensity of the magnetic field acting upon the thickness defining member 11, whereby the removal of the toner lumps, etc. is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6078479A JPS55151674A (en) | 1979-05-17 | 1979-05-17 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6078479A JPS55151674A (en) | 1979-05-17 | 1979-05-17 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55151674A true JPS55151674A (en) | 1980-11-26 |
Family
ID=13152256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6078479A Pending JPS55151674A (en) | 1979-05-17 | 1979-05-17 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55151674A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5828864U (en) * | 1981-08-21 | 1983-02-24 | 株式会社東芝 | developing device |
JPS5842843U (en) * | 1981-09-17 | 1983-03-22 | 三洋電機株式会社 | Copying machine developing device |
JPS5845549U (en) * | 1981-09-18 | 1983-03-26 | 三洋電機株式会社 | Copy paper developing device |
JPS5886653U (en) * | 1981-12-08 | 1983-06-11 | 株式会社東芝 | developing device |
JPS60230146A (en) * | 1984-04-27 | 1985-11-15 | Mita Ind Co Ltd | Electrophotographic developing method |
-
1979
- 1979-05-17 JP JP6078479A patent/JPS55151674A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5828864U (en) * | 1981-08-21 | 1983-02-24 | 株式会社東芝 | developing device |
JPS5842843U (en) * | 1981-09-17 | 1983-03-22 | 三洋電機株式会社 | Copying machine developing device |
JPS5845549U (en) * | 1981-09-18 | 1983-03-26 | 三洋電機株式会社 | Copy paper developing device |
JPH0132051Y2 (en) * | 1981-09-18 | 1989-10-02 | ||
JPS5886653U (en) * | 1981-12-08 | 1983-06-11 | 株式会社東芝 | developing device |
JPS60230146A (en) * | 1984-04-27 | 1985-11-15 | Mita Ind Co Ltd | Electrophotographic developing method |
JPH0519708B2 (en) * | 1984-04-27 | 1993-03-17 | Mita Industrial Co Ltd |
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