JPS557770A - Magnification changeover driving circuit - Google Patents
Magnification changeover driving circuitInfo
- Publication number
- JPS557770A JPS557770A JP8113978A JP8113978A JPS557770A JP S557770 A JPS557770 A JP S557770A JP 8113978 A JP8113978 A JP 8113978A JP 8113978 A JP8113978 A JP 8113978A JP S557770 A JPS557770 A JP S557770A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- motor
- magnification
- changeover driving
- energized
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 abstract 4
Abstract
PURPOSE:To heighten stop position, reduce the burden of drive system and improve operating characteristic by letting the drive system make magnification changeover driving for more than a fixed time then stopping the same in a copying machine, etc. CONSTITUTION:While the optical system is being driven to a life size position, an FF1 and FF2 are set and a relay RA1 is energized and a magnification changeover driving motor M is running forward. When a variable power key is operated, the FF1 is reset and the FF3 is set and the motor continus forward running. When the optical system reaches the specified position at the time of variable power, the FF2 is reser by the output of the sensor S1, the FF4 is set and the relay RA2 is energized, causing the motor M to run backward to drive the optical system to the variable magnification change. When the optical system reaches the variable magnification position, the FF4 is reset by the output of the sensor S2 and the motor M is turned OFF.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8113978A JPS557770A (en) | 1978-07-04 | 1978-07-04 | Magnification changeover driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8113978A JPS557770A (en) | 1978-07-04 | 1978-07-04 | Magnification changeover driving circuit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62263043A Division JPS63139377A (en) | 1987-10-19 | 1987-10-19 | Image processing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS557770A true JPS557770A (en) | 1980-01-19 |
JPS6410831B2 JPS6410831B2 (en) | 1989-02-22 |
Family
ID=13738060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8113978A Granted JPS557770A (en) | 1978-07-04 | 1978-07-04 | Magnification changeover driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS557770A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140436A (en) * | 1983-02-01 | 1984-08-11 | Fuji Xerox Co Ltd | Control device of variable power optical system |
JPS59147368A (en) * | 1983-02-10 | 1984-08-23 | Fuji Xerox Co Ltd | Controlling method of copying machine |
JPS6014224A (en) * | 1983-07-06 | 1985-01-24 | Toshiba Corp | Image forming device |
JPH0816768B1 (en) * | 1988-12-27 | 1996-02-21 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52144730U (en) * | 1976-04-28 | 1977-11-02 | ||
JPS5374026A (en) * | 1977-11-05 | 1978-07-01 | Minolta Camera Co Ltd | Variable magnification lens device |
-
1978
- 1978-07-04 JP JP8113978A patent/JPS557770A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52144730U (en) * | 1976-04-28 | 1977-11-02 | ||
JPS5374026A (en) * | 1977-11-05 | 1978-07-01 | Minolta Camera Co Ltd | Variable magnification lens device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140436A (en) * | 1983-02-01 | 1984-08-11 | Fuji Xerox Co Ltd | Control device of variable power optical system |
JPH0469376B2 (en) * | 1983-02-01 | 1992-11-06 | Fuji Xerox Co Ltd | |
JPS59147368A (en) * | 1983-02-10 | 1984-08-23 | Fuji Xerox Co Ltd | Controlling method of copying machine |
JPS6014224A (en) * | 1983-07-06 | 1985-01-24 | Toshiba Corp | Image forming device |
JPH0455293B2 (en) * | 1983-07-06 | 1992-09-02 | Tokyo Shibaura Electric Co | |
JPH0816768B1 (en) * | 1988-12-27 | 1996-02-21 |
Also Published As
Publication number | Publication date |
---|---|
JPS6410831B2 (en) | 1989-02-22 |
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