JPS5574563A - Variable-power copying apparatus - Google Patents
Variable-power copying apparatusInfo
- Publication number
- JPS5574563A JPS5574563A JP14832178A JP14832178A JPS5574563A JP S5574563 A JPS5574563 A JP S5574563A JP 14832178 A JP14832178 A JP 14832178A JP 14832178 A JP14832178 A JP 14832178A JP S5574563 A JPS5574563 A JP S5574563A
- Authority
- JP
- Japan
- Prior art keywords
- original
- solid state
- scanning element
- signal
- optical system
- 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)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE:To perform good variable-power copying with a simple constitution by changing over the speed differences of the relative speed of the original and solid state scanning element and the recording paper conveying speed of the write part. CONSTITUTION:A solid state scanning element 18 such as CCD or photo diode array which performs photoelectric conversion, self-scans in the main scanning direction perpendicular to the moving direction of an optical system at each unit time and outputs the electric signal for each of one scanning line is provided to an orginal read part 11 and is connected to the writing stylus part 26 of an original write part 20 by way of a sampling converting-signal processing part 19. With this arrangement, the images of the original 14 lighted by a light source 12 are imaged, photoelectrically converted and scanned by the solid state scanning element 18, after which they are sampled by the sampling clock of the period corresponding to the original size in the sampling converting-signal processing part 19 and are inputted as the signal of a fixed signal number irrespective of the original size into the writing stylus part 26, by which electrostatic latent images are formed on recording paper 21. Hence, the copies of a uniform size may be obtained from the originals of different sizes without machanical change-over of the image optical system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14832178A JPS5574563A (en) | 1978-11-30 | 1978-11-30 | Variable-power copying apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14832178A JPS5574563A (en) | 1978-11-30 | 1978-11-30 | Variable-power copying apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574563A true JPS5574563A (en) | 1980-06-05 |
Family
ID=15450162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14832178A Pending JPS5574563A (en) | 1978-11-30 | 1978-11-30 | Variable-power copying apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574563A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245861A (en) * | 1986-04-18 | 1987-10-27 | Canon Inc | Photographing device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267210A (en) * | 1975-12-01 | 1977-06-03 | Toshiba Corp | Facsimile transmission equipment |
JPS52149913A (en) * | 1976-06-09 | 1977-12-13 | Toshiba Corp | Facsimile transmission |
-
1978
- 1978-11-30 JP JP14832178A patent/JPS5574563A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267210A (en) * | 1975-12-01 | 1977-06-03 | Toshiba Corp | Facsimile transmission equipment |
JPS52149913A (en) * | 1976-06-09 | 1977-12-13 | Toshiba Corp | Facsimile transmission |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245861A (en) * | 1986-04-18 | 1987-10-27 | Canon Inc | Photographing device |
JPH0813086B2 (en) * | 1986-04-18 | 1996-02-07 | キヤノン株式会社 | Imaging device |
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