JPS5494323A - Optical device for copying machine - Google Patents
Optical device for copying machineInfo
- Publication number
- JPS5494323A JPS5494323A JP102978A JP102978A JPS5494323A JP S5494323 A JPS5494323 A JP S5494323A JP 102978 A JP102978 A JP 102978A JP 102978 A JP102978 A JP 102978A JP S5494323 A JPS5494323 A JP S5494323A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- document
- shifts
- drum
- speed
- 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 make it possible to dispose the position of an image projection unit with the range of some shiftable allowance on the drum by using the first mirror which shifts parallel together with an original document, the second mirror which shifts in the same direction at its 1/2 speed and compensates the length of an optical path definitely, and in-mirror lens and a change mirror.
CONSTITUTION: Original document is placed on the document tray glass 2 comprising the plane on which the document is placed. Image of the document is focused on the drum 8 by the optical system comprising illuminating lamp 3, the first mirror 4 which shifts together with the lamp 3 parallel with the document glass at scanning speed V, the second mirror 5 which shifts in the same direction at 1/2 speed of that of the first mirror 4 and compensates in order that the optical path length may be constant, the stationary in-mirror lens 6, and change mirror 7. The forming process of the good quality image can be done by inclining the optical axis of the above in-mirror lens 6 with some angle to the document tray glass 2, disposing the focusing unit 10 somewhat below the side of the drum 8, and disposing destaticizer 9" and primary charger 9 between cleaner 22 and focusing unit 10.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP102978A JPS5494323A (en) | 1978-01-09 | 1978-01-09 | Optical device for copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP102978A JPS5494323A (en) | 1978-01-09 | 1978-01-09 | Optical device for copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5494323A true JPS5494323A (en) | 1979-07-26 |
Family
ID=11490127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP102978A Pending JPS5494323A (en) | 1978-01-09 | 1978-01-09 | Optical device for copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5494323A (en) |
-
1978
- 1978-01-09 JP JP102978A patent/JPS5494323A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5717918A (en) | Method and apparatus for scanning of light beam | |
JPS5494323A (en) | Optical device for copying machine | |
JPS55155378A (en) | Electrophotographic copying machine | |
JPS5748754A (en) | Copying device | |
JPS5658369A (en) | Copying machine in common use as transmitter | |
JPS6410228A (en) | Copying machine | |
JPS54138449A (en) | Original fixing type copying machine | |
JPS55126258A (en) | Optical device of copying machine | |
JPS5691258A (en) | Macro-copying machine | |
JPS5512938A (en) | Optical device for copying machine | |
JPS5512933A (en) | Electrophotographic printing machine | |
JPS55126263A (en) | Variable magnification optical device | |
JPS55124166A (en) | Optical device | |
JPS55135869A (en) | Optical device of copying machnine or the like | |
JPS5589867A (en) | Variable power exposure optical system in copying machine | |
JPS5598769A (en) | Lighting device of copying machine | |
JPS55157763A (en) | Original scanner | |
JPS56126877A (en) | Copying machine | |
JPS5567764A (en) | Exposure device | |
JPS5657061A (en) | Composite office machine | |
JPS5498250A (en) | Scanning exposure device for copier | |
JPS5470840A (en) | Scanning exposure device for copying apparatus | |
JPH0394555U (en) | ||
JPS54103023A (en) | Image forming apparatus | |
JPS56146161A (en) | Copying apparatus capable of reading image |