| 摘要 |
PROBLEM TO BE SOLVED: To reduce the deterioration in an image caused by vibrations by obtaining the effect of a dynamic damper for a photoreceptor driving system. SOLUTION: In a rotating and driving device having a photoreceptor drum 3 which is a rotary body, a drum shaft 4 integrally provided with the photoreceptor drum 3 and a driving motor 1 driven and connected by/with the drum shaft 4 through a gear train 2, a ring-like inertia body 6 having the moment of inertia is attached to the outer periphery of the photoreceptor drum 3 through an elastic body 7. |
