JPS5590973A - Exposure device of electrophotographic copier - Google Patents
Exposure device of electrophotographic copierInfo
- Publication number
- JPS5590973A JPS5590973A JP16525978A JP16525978A JPS5590973A JP S5590973 A JPS5590973 A JP S5590973A JP 16525978 A JP16525978 A JP 16525978A JP 16525978 A JP16525978 A JP 16525978A JP S5590973 A JPS5590973 A JP S5590973A
- Authority
- JP
- Japan
- Prior art keywords
- scanning
- mirrors
- static
- distance
- exposure
- 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
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
PURPOSE: To reduce the moving distance of the scanning mirrors and improve the copying speed by slit-illuminating the static orignal surface by the light from static light sources by moving the scanning plane mirrors.
CONSTITUTION: Scanning distance of scanning plane mirrors 11 are shorter than the scanning distance in original surface 2 and the light from static light sources 8 are slit-illuminated to the original surface by way of static mirrors 10. After the end of the exposure, the lens 3 again returns to the exposure start position, during which time the scanning plane mirrors 11 are also returned to the respective scanning start positions to be ready for the next exposure operation. Since the distance from the light sources 8 to the orignal surface is constant, guadratic surface of revolution may be used for reflectors 9 and the lighting efficiency enhanced. In addition, by reducing the scanning time of the scanning mirrors, the miniaturized exposure device of the electrophotographic copier of superior high speed coying characteristic may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16525978A JPS5590973A (en) | 1978-12-29 | 1978-12-29 | Exposure device of electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16525978A JPS5590973A (en) | 1978-12-29 | 1978-12-29 | Exposure device of electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5590973A true JPS5590973A (en) | 1980-07-10 |
Family
ID=15808915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16525978A Pending JPS5590973A (en) | 1978-12-29 | 1978-12-29 | Exposure device of electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590973A (en) |
-
1978
- 1978-12-29 JP JP16525978A patent/JPS5590973A/en active Pending
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