JPS5589869A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS5589869A JPS5589869A JP16586578A JP16586578A JPS5589869A JP S5589869 A JPS5589869 A JP S5589869A JP 16586578 A JP16586578 A JP 16586578A JP 16586578 A JP16586578 A JP 16586578A JP S5589869 A JPS5589869 A JP S5589869A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- layer thickness
- supporting means
- coefficient
- thermal expansion
- 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)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To keep the toner layer thickness roughly constant within the specified temperature range and obtain an excellent image, by providing a developer supporting means and a developer layer thickness defining means, and specifying the dimension between these linking parts and coefficient of thermal expansion in specified relations. CONSTITUTION:Opposite to a latent image holding member 1 are provided a developer supporting means 2, a means 6 to define the thickness of the layer of the developer being supplied, and a means 4 to connect them. The distance L from the linking part of the linkage supporting means 4 with the developer supporting means 2 to the linking part 7 with the developer layer thickness defining means 6, the coefficient of thermal expansion a, the distance l from the linking part 7 to the end of the developer layer thickness defining means 6, the coefficient of thermal expansion b, and the distance d at 15 deg.C from the developer supporting means 2 to the developer defining means 6 are designed to satisfy the relations of a<b and formulae (1) and (2). Therefore, within the operating temperatures of -5 deg.C-35 deg.C, the toner layer thickness may be kept almost constant, so that an excellent image may be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16586578A JPS5589869A (en) | 1978-12-27 | 1978-12-27 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16586578A JPS5589869A (en) | 1978-12-27 | 1978-12-27 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5589869A true JPS5589869A (en) | 1980-07-07 |
Family
ID=15820446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16586578A Pending JPS5589869A (en) | 1978-12-27 | 1978-12-27 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589869A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078467A (en) * | 1983-10-05 | 1985-05-04 | Ricoh Co Ltd | Developing device |
JPS6095558A (en) * | 1983-10-31 | 1985-05-28 | Konishiroku Photo Ind Co Ltd | Developing device of copying machine or the like |
JPH01309080A (en) * | 1988-06-08 | 1989-12-13 | Fuji Xerox Co Ltd | Developing device |
US6038416A (en) * | 1997-08-04 | 2000-03-14 | Hitachi, Ltd. | Developing apparatus and image forming apparatus having the same |
-
1978
- 1978-12-27 JP JP16586578A patent/JPS5589869A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078467A (en) * | 1983-10-05 | 1985-05-04 | Ricoh Co Ltd | Developing device |
JPS6095558A (en) * | 1983-10-31 | 1985-05-28 | Konishiroku Photo Ind Co Ltd | Developing device of copying machine or the like |
JPH01309080A (en) * | 1988-06-08 | 1989-12-13 | Fuji Xerox Co Ltd | Developing device |
US6038416A (en) * | 1997-08-04 | 2000-03-14 | Hitachi, Ltd. | Developing apparatus and image forming apparatus having the same |
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