JPS52155523A - Diaphragm device for slit exposur type variable magnification copier - Google Patents
Diaphragm device for slit exposur type variable magnification copierInfo
- Publication number
- JPS52155523A JPS52155523A JP7260176A JP7260176A JPS52155523A JP S52155523 A JPS52155523 A JP S52155523A JP 7260176 A JP7260176 A JP 7260176A JP 7260176 A JP7260176 A JP 7260176A JP S52155523 A JPS52155523 A JP S52155523A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- exposur
- variable magnification
- type variable
- diaphragm device
- 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.)
- Granted
Links
Landscapes
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To maintain a constant quantity of the exposure light to a photosensitive body irrespective of the change of multiplication in the variable multiplication copier of slit exposure tye by shifting the slit formation plate while interlocked with the action of variable multiplication.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51072601A JPS592010B2 (en) | 1976-06-19 | 1976-06-19 | Aperture device of slit exposure variable magnification copying machine |
US06/108,187 US4279497A (en) | 1976-05-18 | 1979-12-27 | Electrostatic copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51072601A JPS592010B2 (en) | 1976-06-19 | 1976-06-19 | Aperture device of slit exposure variable magnification copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52155523A true JPS52155523A (en) | 1977-12-24 |
JPS592010B2 JPS592010B2 (en) | 1984-01-17 |
Family
ID=13494073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51072601A Expired JPS592010B2 (en) | 1976-05-18 | 1976-06-19 | Aperture device of slit exposure variable magnification copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS592010B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066987A (en) * | 1988-12-19 | 1991-11-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Shading board for copying apparatus |
-
1976
- 1976-06-19 JP JP51072601A patent/JPS592010B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066987A (en) * | 1988-12-19 | 1991-11-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Shading board for copying apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS592010B2 (en) | 1984-01-17 |
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