JPS5498251A - Scanning exposure device for copier - Google Patents
Scanning exposure device for copierInfo
- Publication number
- JPS5498251A JPS5498251A JP552778A JP552778A JPS5498251A JP S5498251 A JPS5498251 A JP S5498251A JP 552778 A JP552778 A JP 552778A JP 552778 A JP552778 A JP 552778A JP S5498251 A JPS5498251 A JP S5498251A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- reflected
- plane mirror
- photoreceptor
- 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
Abstract
PURPOSE: To enhance copying efficiency without complicating a device, by providing 2 scanners to expose a photoreceptor even during movement of movable parts of an optical system.
CONSTITUTION: First plane mirror 1 is translated from the position of a full line to position 1a of an alternate along and short dash line in parallel to original 0 to forward scan the original surface. Second plane mirror 2 follows mirror 1 at a speed of 1/2 of that of mirror 1, moving from the position of a full line to position 2a of an alternate long and short dash line. The light flux reflected from the original surface is reflected by mirrors 1 and 2, falls on mirror lens 3, further reflected by plane mirror 4, and forms the image on circumferential surface 40 of photoreceptor 9. In backward scanning, the light flux reflected from the original surface is reflected by third plane mirror 11 combined with mirror 1 in a roof shape, reflected by fourth plane mirror 22 moving at a moving speed of 1/2 of that of mirror 11, falls on lens 3, further reflected by surface 44 and 55 of prism 45, again by plane mirror 66, and finally forms the image on circumferential surface 660 of photoreceptor 9.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP552778A JPS5498251A (en) | 1978-01-20 | 1978-01-20 | Scanning exposure device for copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP552778A JPS5498251A (en) | 1978-01-20 | 1978-01-20 | Scanning exposure device for copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5498251A true JPS5498251A (en) | 1979-08-03 |
Family
ID=11613654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP552778A Pending JPS5498251A (en) | 1978-01-20 | 1978-01-20 | Scanning exposure device for copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498251A (en) |
-
1978
- 1978-01-20 JP JP552778A patent/JPS5498251A/en active Pending
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