JPS5577762A - Copy magnification varying device - Google Patents
Copy magnification varying deviceInfo
- Publication number
- JPS5577762A JPS5577762A JP15176878A JP15176878A JPS5577762A JP S5577762 A JPS5577762 A JP S5577762A JP 15176878 A JP15176878 A JP 15176878A JP 15176878 A JP15176878 A JP 15176878A JP S5577762 A JPS5577762 A JP S5577762A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- reaches
- stopping
- rotates
- solenoid
- 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)
Abstract
PURPOSE:To stop the lens at accurate position, by controlling the rotation driving source and lens stopping means individually. CONSTITUTION:A supporting base 22 to which is secured a lens-barrel B of a lens 16 moving reciprocally along quide 24, 25 is secured to a moving base 23. A rotating plate 32 equipped with magnets 491, 492 and coil springs 41, 44 are provided between said moving base 23 and a unidirection rotating motor 27 which is a rotation driving source. In this setting, when a variable power button is depressed, a solenoid 50 is energized, and a stopping plate 51 rotates downward by a specified angle. At the same time, the rotating plate 32 rotates in one specified derection, and the magnet 491 reaches a corresponding hole position, before the lens 16 reaches the stopping position corresponding to the selected magnification, and issues a signal, so that the solenoid 50 is cut off, then the stopping plate 51 rotates reversely. Consequently, a roller 56 is engaged with one of stepped parts 53-55 by the action of coil springs 41, 44, and the lens 16 stops. Later, the magnet 492 reaches the corresponding hole position, and the motor 27 is stopped by the signal generated, so that the lens 16 may be stopped at a correct position.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15176878A JPS5577762A (en) | 1978-12-08 | 1978-12-08 | Copy magnification varying device |
| DE19792949164 DE2949164A1 (en) | 1978-12-08 | 1979-12-06 | Process roller mount for photocopier - has uncoupled end plate for drum removal, with drive couplings fitted to plate and with electrical connections for corona plate |
| DE2949338A DE2949338C2 (en) | 1978-12-08 | 1979-12-07 | Device for changing the copy scale |
| US06/221,621 US4323308A (en) | 1978-12-08 | 1980-12-31 | Copy magnification modifying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15176878A JPS5577762A (en) | 1978-12-08 | 1978-12-08 | Copy magnification varying device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14351083A Division JPS5946638A (en) | 1983-08-05 | 1983-08-05 | Copying device of variable power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5577762A true JPS5577762A (en) | 1980-06-11 |
Family
ID=15525861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15176878A Pending JPS5577762A (en) | 1978-12-08 | 1978-12-08 | Copy magnification varying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5577762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57211172A (en) * | 1981-06-22 | 1982-12-24 | Toshiba Corp | Exposure device |
| JPS5946638A (en) * | 1983-08-05 | 1984-03-16 | Canon Inc | Copying device of variable power |
-
1978
- 1978-12-08 JP JP15176878A patent/JPS5577762A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57211172A (en) * | 1981-06-22 | 1982-12-24 | Toshiba Corp | Exposure device |
| JPS5946638A (en) * | 1983-08-05 | 1984-03-16 | Canon Inc | Copying device of variable power |
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