JPS5553366A - Exposure optical system of electrophotographic copier - Google Patents
Exposure optical system of electrophotographic copierInfo
- Publication number
- JPS5553366A JPS5553366A JP12773578A JP12773578A JPS5553366A JP S5553366 A JPS5553366 A JP S5553366A JP 12773578 A JP12773578 A JP 12773578A JP 12773578 A JP12773578 A JP 12773578A JP S5553366 A JPS5553366 A JP S5553366A
- Authority
- JP
- Japan
- Prior art keywords
- original platen
- synchronization
- shutter curtain
- optical system
- original
- 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
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To enable sure operation to be obtained with a simple construction by driving the shutter curtain having an opening nearly equal to the effective image region of an original platen in synchronization with the original platen.
CONSTITUTION: The images of the original placed on a transparent original platen 1 are subsequently formed on plural photoreceptors moving in synchronization to the movement of the original platen 1 through the static optical system having plural exposure slits 3a thru 3c. A shutter curtain 31 having an opening equal to or slightly larger than the effective image region S of the original platen 1 is so positioned that its opening aligns to the region S and is spread below the original platen 1 so that only during each slit 3 is contributing to imaging the light is passed through that slit 3. This shutter curtain 31 is so arranged as to be driven in synchronization to the original platen 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12773578A JPS5553366A (en) | 1978-10-17 | 1978-10-17 | Exposure optical system of electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12773578A JPS5553366A (en) | 1978-10-17 | 1978-10-17 | Exposure optical system of electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553366A true JPS5553366A (en) | 1980-04-18 |
Family
ID=14967379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12773578A Pending JPS5553366A (en) | 1978-10-17 | 1978-10-17 | Exposure optical system of electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553366A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63169635A (en) * | 1987-01-08 | 1988-07-13 | Minolta Camera Co Ltd | Copying device |
-
1978
- 1978-10-17 JP JP12773578A patent/JPS5553366A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63169635A (en) * | 1987-01-08 | 1988-07-13 | Minolta Camera Co Ltd | Copying device |
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