JPS5389438A - Control device for amount of exposure for electrophotographic copier - Google Patents
Control device for amount of exposure for electrophotographic copierInfo
- Publication number
- JPS5389438A JPS5389438A JP417577A JP417577A JPS5389438A JP S5389438 A JPS5389438 A JP S5389438A JP 417577 A JP417577 A JP 417577A JP 417577 A JP417577 A JP 417577A JP S5389438 A JPS5389438 A JP S5389438A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- exposure
- control device
- electrophotographic copier
- light
- 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
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Control Or Security For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE:To obtain a proper amount of light at the time of equal or reduced scale in a simple constitution without recourse to the operation of change by providing a corrector which corrects the amount of light of exposure at the time of reducing scale on a slit plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP417577A JPS5389438A (en) | 1977-01-18 | 1977-01-18 | Control device for amount of exposure for electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP417577A JPS5389438A (en) | 1977-01-18 | 1977-01-18 | Control device for amount of exposure for electrophotographic copier |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25962884A Division JPS60227247A (en) | 1984-12-07 | 1984-12-07 | Exposing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5389438A true JPS5389438A (en) | 1978-08-07 |
Family
ID=11577371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP417577A Pending JPS5389438A (en) | 1977-01-18 | 1977-01-18 | Control device for amount of exposure for electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5389438A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214144A (en) * | 1982-06-08 | 1983-12-13 | Canon Inc | Original density detector of variable power type copying machine |
-
1977
- 1977-01-18 JP JP417577A patent/JPS5389438A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214144A (en) * | 1982-06-08 | 1983-12-13 | Canon Inc | Original density detector of variable power type copying machine |
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