JPS5470840A - Scanning exposure device for copying apparatus - Google Patents
Scanning exposure device for copying apparatusInfo
- Publication number
- JPS5470840A JPS5470840A JP13736977A JP13736977A JPS5470840A JP S5470840 A JPS5470840 A JP S5470840A JP 13736977 A JP13736977 A JP 13736977A JP 13736977 A JP13736977 A JP 13736977A JP S5470840 A JPS5470840 A JP S5470840A
- Authority
- JP
- Japan
- Prior art keywords
- original
- during
- backward
- photosensitive element
- scanning operation
- 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)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To focus an erect image on the surface of a photosensitive element even the forward and backward scanning operations of an original thereby to increase the copying speed by moving the photosensitive element in the forward direction, when the original is scanned in a first direction, and by moving the same in the backward direction when the original is second direction.
CONSTITUTION: During the forward scanning operation, a plane mirror 1 is moved from position 1 to position 1a along the surface of an original 0 but vice veras during the backward scanning operation. A plane mirror 2 is so movable at a half speed of the moving speed of the mirror 1 that itis moved from position 2 to position 2a during the forward scanning operation and vice versa during the backward scanning operation thereby to make it possible to scan the original 0 during both the forward and bqckward scanning operations. The scanned image of the original 0 is focused upon the surface of a photosensive element 9 through an in-mirror lens 3 and a plane mirror 4. The photosensitive element 9 is made rotatable back and forth in a manner to respectively correspond to the backward and forward scanning directions so that the erect image of the original can be focused upon the surface of the photosensitive element 9 during both the forward and backward scanning operations.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13736977A JPS5470840A (en) | 1977-11-16 | 1977-11-16 | Scanning exposure device for copying apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13736977A JPS5470840A (en) | 1977-11-16 | 1977-11-16 | Scanning exposure device for copying apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5470840A true JPS5470840A (en) | 1979-06-07 |
Family
ID=15197062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13736977A Pending JPS5470840A (en) | 1977-11-16 | 1977-11-16 | Scanning exposure device for copying apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5470840A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56106258A (en) * | 1980-01-26 | 1981-08-24 | Ricoh Co Ltd | Reciprocating exposure type electrophotographic copier |
-
1977
- 1977-11-16 JP JP13736977A patent/JPS5470840A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56106258A (en) * | 1980-01-26 | 1981-08-24 | Ricoh Co Ltd | Reciprocating exposure type electrophotographic copier |
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