JPS5639556A - Electrophotographic copier - Google Patents
Electrophotographic copierInfo
- Publication number
- JPS5639556A JPS5639556A JP11496979A JP11496979A JPS5639556A JP S5639556 A JPS5639556 A JP S5639556A JP 11496979 A JP11496979 A JP 11496979A JP 11496979 A JP11496979 A JP 11496979A JP S5639556 A JPS5639556 A JP S5639556A
- Authority
- JP
- Japan
- Prior art keywords
- image
- heat accumulator
- time
- control circuit
- accordance
- 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
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To obtain a high quality image, by detecting temperature change of a heat accumulator, changing charging voltage to a photoreceptor in accordance with its temperature change, and controlling characteristics of a copy image.
CONSTITUTION: A charge potential of a photoreceptor changes with time, temperature detector 36 is contacted to heat accumulator 31 approximate to it in time constant, and voltage of charger 40 is controlled in accordance with its temperature changing with time through image control circuit 38 and charging voltage control circuit 39. As a heat accumulator, a combination of a heater and ceramics, as well as lamps for destaticization or exposure can be used, thus permitting an image to be stabilized securely in a simple manner.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496979A JPS5639556A (en) | 1979-09-07 | 1979-09-07 | Electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496979A JPS5639556A (en) | 1979-09-07 | 1979-09-07 | Electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5639556A true JPS5639556A (en) | 1981-04-15 |
Family
ID=14651104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11496979A Pending JPS5639556A (en) | 1979-09-07 | 1979-09-07 | Electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638772A (en) * | 1986-06-30 | 1988-01-14 | Mita Ind Co Ltd | Temperature controller for photosensitive drum |
-
1979
- 1979-09-07 JP JP11496979A patent/JPS5639556A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638772A (en) * | 1986-06-30 | 1988-01-14 | Mita Ind Co Ltd | Temperature controller for photosensitive drum |
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