| 摘要 |
PURPOSE:To prevent the slight vibration of the moving unit, for example, drum of photoreceptor of a copying machine by interposing an elastic member of vibration absorption to a driving system. CONSTITUTION:A sprocket wheel 21, and a pulley 27 for driving an exposure scanning system are mounted to the driving output shaft 24 to the moving unit of the copying machine. And a buffer member 28 is mounted to the shaft 24. Then, even if impact is produced at the reciprocative movement of the exposure scanning system, the vibration is absorbed by this buffer member 28. |
