JPS54130137A - Electronic printer - Google Patents
Electronic printerInfo
- Publication number
- JPS54130137A JPS54130137A JP3774978A JP3774978A JPS54130137A JP S54130137 A JPS54130137 A JP S54130137A JP 3774978 A JP3774978 A JP 3774978A JP 3774978 A JP3774978 A JP 3774978A JP S54130137 A JPS54130137 A JP S54130137A
- Authority
- JP
- Japan
- Prior art keywords
- reflected
- angles
- 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 enable magnification conversion of expansion and reduction to be readily performed with a relatively simple mechanism by scanning the orignal with a part of the rotating angles of a rotary mirror and exposing a photoreceptor with a part of the other rotating angles.
CONSTITUTION: Laser light from a laser oscillator 15 passes through a modulator 16, is reflected by a stationary mirror 17 and arrives at a rotary mirror 21, where while it is scanned at angles α from a1 up to a2 it is reflected by an original side mirror 20 and exposes the original 30 moving at an equal speed. The reflected laser light from the original 30 is photoelectrically converted with a photo detector 25 and is stored in a memory device 26 via control unit 29. The rotary mirror 21 rotates further and the signal having been stored in the memory device 26 is applied to the modulator 16 between the rotating angles b1 thru b2. The laser thus modulated is then reflected by the photoreceptor side mirror 19 and exposes the photoreceptor 1. The magnification conversion is accomplished by changing the rotating speed of the photoreceotor 1 to the value meeting the rate of variable power and changing the exposure scanning angles.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3774978A JPS54130137A (en) | 1978-03-31 | 1978-03-31 | Electronic printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3774978A JPS54130137A (en) | 1978-03-31 | 1978-03-31 | Electronic printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54130137A true JPS54130137A (en) | 1979-10-09 |
Family
ID=12506115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3774978A Pending JPS54130137A (en) | 1978-03-31 | 1978-03-31 | Electronic printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54130137A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4916480A (en) * | 1988-06-29 | 1990-04-10 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US4965870A (en) * | 1988-06-29 | 1990-10-23 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US5017961A (en) * | 1988-06-29 | 1991-05-21 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US5025286A (en) * | 1988-06-29 | 1991-06-18 | Minolta Camera Kabushiki Kaisha | Laser beam image forming apparatus with SOS Detection |
US5122817A (en) * | 1988-06-29 | 1992-06-16 | Hirofumi Hasegawa | Electrophotographic recorder using a modulated laser beam to scan the original |
-
1978
- 1978-03-31 JP JP3774978A patent/JPS54130137A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4916480A (en) * | 1988-06-29 | 1990-04-10 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US4965870A (en) * | 1988-06-29 | 1990-10-23 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US5017961A (en) * | 1988-06-29 | 1991-05-21 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with use of a laser beam |
US5025286A (en) * | 1988-06-29 | 1991-06-18 | Minolta Camera Kabushiki Kaisha | Laser beam image forming apparatus with SOS Detection |
US5122817A (en) * | 1988-06-29 | 1992-06-16 | Hirofumi Hasegawa | Electrophotographic recorder using a modulated laser beam to scan the original |
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