JPS5214422A - Automatic control method of exposure for the electrophotographic copying machine - Google Patents
Automatic control method of exposure for the electrophotographic copying machineInfo
- Publication number
- JPS5214422A JPS5214422A JP50089647A JP8964775A JPS5214422A JP S5214422 A JPS5214422 A JP S5214422A JP 50089647 A JP50089647 A JP 50089647A JP 8964775 A JP8964775 A JP 8964775A JP S5214422 A JPS5214422 A JP S5214422A
- Authority
- JP
- Japan
- Prior art keywords
- exposure
- control method
- automatic control
- copying machine
- electrophotographic copying
- 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
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To obtain a good image copy at a definite exposure by controlling an iris of intensity of illumination from the comparison between an electric signal obtained from the transformation of light and a preset standard signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50089647A JPS5214422A (en) | 1975-07-24 | 1975-07-24 | Automatic control method of exposure for the electrophotographic copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50089647A JPS5214422A (en) | 1975-07-24 | 1975-07-24 | Automatic control method of exposure for the electrophotographic copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5214422A true JPS5214422A (en) | 1977-02-03 |
Family
ID=13976548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50089647A Pending JPS5214422A (en) | 1975-07-24 | 1975-07-24 | Automatic control method of exposure for the electrophotographic copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5214422A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124438U (en) * | 1977-03-11 | 1978-10-03 | ||
JPS5694371A (en) * | 1979-12-27 | 1981-07-30 | Canon Inc | Exposure control device |
JPS59210433A (en) * | 1983-05-14 | 1984-11-29 | Sharp Corp | Copying machine |
JPS6187175A (en) * | 1984-06-11 | 1986-05-02 | Canon Inc | Picture formation device |
JPH0418849U (en) * | 1990-06-06 | 1992-02-17 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502014U (en) * | 1973-05-02 | 1975-01-10 |
-
1975
- 1975-07-24 JP JP50089647A patent/JPS5214422A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502014U (en) * | 1973-05-02 | 1975-01-10 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124438U (en) * | 1977-03-11 | 1978-10-03 | ||
JPS5694371A (en) * | 1979-12-27 | 1981-07-30 | Canon Inc | Exposure control device |
JPS59210433A (en) * | 1983-05-14 | 1984-11-29 | Sharp Corp | Copying machine |
JPS6187175A (en) * | 1984-06-11 | 1986-05-02 | Canon Inc | Picture formation device |
JPS6257990B2 (en) * | 1984-06-11 | 1987-12-03 | Canon Kk | |
JPH0418849U (en) * | 1990-06-06 | 1992-02-17 |
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