JPS5555370A - Magnetic brush developing unit - Google Patents
Magnetic brush developing unitInfo
- Publication number
- JPS5555370A JPS5555370A JP12917678A JP12917678A JPS5555370A JP S5555370 A JPS5555370 A JP S5555370A JP 12917678 A JP12917678 A JP 12917678A JP 12917678 A JP12917678 A JP 12917678A JP S5555370 A JPS5555370 A JP S5555370A
- Authority
- JP
- Japan
- Prior art keywords
- developing
- rollers
- developer
- feed
- nondeveloping
- 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
Abstract
PURPOSE: To carry out in a simple and certain manner switchover action of supply and nonsupply of developer to developing rollers, by stopping rotation of feed rollers in nondeveloping to stop developer feed to the developing rollers.
CONSTITUTION: Developer 68 stirred with agitating member 62 and agitator 63 in the lower part of developing vessel 61 is carried upward with feed rollers 64, 65, transferred to second and first developing rollers 67, 66, and comes in contact with a latent image on a photorecepter between both rollers 66, 67 to develop the image. After the main switch of a copying machine is turned on, two developing rollers 66, 67 keep on rotating irrespective of developing or nondeveloping in this developing unit, while member 62, agitator 63, and each feed roller 64, 65 stop rotation in nondeveloping, thus permitting switchover action of supply or nonsupply of the developer to be carried out certainly in a simple manner.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12917678A JPS5555370A (en) | 1978-10-20 | 1978-10-20 | Magnetic brush developing unit |
US06/085,490 US4267201A (en) | 1978-10-20 | 1979-10-17 | Magnetic brush development apparatus and method |
DE2942415A DE2942415C2 (en) | 1978-10-20 | 1979-10-19 | Developing device for a color electrophotographic copier |
DE2953948A DE2953948C2 (en) | 1978-10-20 | 1979-10-19 | Developing device for an electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12917678A JPS5555370A (en) | 1978-10-20 | 1978-10-20 | Magnetic brush developing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5555370A true JPS5555370A (en) | 1980-04-23 |
Family
ID=15003014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12917678A Pending JPS5555370A (en) | 1978-10-20 | 1978-10-20 | Magnetic brush developing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5555370A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58205173A (en) * | 1982-05-25 | 1983-11-30 | Ricoh Co Ltd | Magnetic brush developing device |
JPS60122960A (en) * | 1983-12-07 | 1985-07-01 | Ricoh Co Ltd | Multicolor developing method |
JPS60239783A (en) * | 1984-05-15 | 1985-11-28 | Fuji Xerox Co Ltd | Magnetic developing method of electronic copying machine |
JPS6126064A (en) * | 1984-07-17 | 1986-02-05 | Konishiroku Photo Ind Co Ltd | Image forming device |
JPS62112181A (en) * | 1985-11-12 | 1987-05-23 | Ricoh Co Ltd | Developing device |
JPS63167388A (en) * | 1986-12-22 | 1988-07-11 | イーストマン・コダック・カンパニー | Magnetic brush developing apparatus |
US10042288B2 (en) * | 2004-11-26 | 2018-08-07 | Ricoh Company, Ltd. | Image forming apparatus capable of effectively developing images |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348534A (en) * | 1976-10-14 | 1978-05-02 | Fujitsu Ltd | Developing device of electrostatic recorder |
-
1978
- 1978-10-20 JP JP12917678A patent/JPS5555370A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348534A (en) * | 1976-10-14 | 1978-05-02 | Fujitsu Ltd | Developing device of electrostatic recorder |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58205173A (en) * | 1982-05-25 | 1983-11-30 | Ricoh Co Ltd | Magnetic brush developing device |
JPH0370225B2 (en) * | 1982-05-25 | 1991-11-06 | Ricoh Kk | |
JPS60122960A (en) * | 1983-12-07 | 1985-07-01 | Ricoh Co Ltd | Multicolor developing method |
JPS60239783A (en) * | 1984-05-15 | 1985-11-28 | Fuji Xerox Co Ltd | Magnetic developing method of electronic copying machine |
JPH0546945B2 (en) * | 1984-05-15 | 1993-07-15 | Fuji Xerox Co Ltd | |
JPS6126064A (en) * | 1984-07-17 | 1986-02-05 | Konishiroku Photo Ind Co Ltd | Image forming device |
JPH0464064B2 (en) * | 1984-07-17 | 1992-10-13 | Konishiroku Photo Ind | |
JPS62112181A (en) * | 1985-11-12 | 1987-05-23 | Ricoh Co Ltd | Developing device |
JPS63167388A (en) * | 1986-12-22 | 1988-07-11 | イーストマン・コダック・カンパニー | Magnetic brush developing apparatus |
US10042288B2 (en) * | 2004-11-26 | 2018-08-07 | Ricoh Company, Ltd. | Image forming apparatus capable of effectively developing images |
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