| 摘要 |
PURPOSE:To prevent the photosensitive belt from occurrence of irregular speed and to reduce jitter of an image by interposing an inertia member and an elastic conductive member between the driving roller shaft of the photosensitive belt and the driving motor. CONSTITUTION:The photosensitive belt 1 is stretched between the driving roller 2 and a follower roller 3, and a driving and combining shaft 9 is fixed so as to be attached to and detached from the shaft of the roller 2. A driving belt 8 is stretched between a pulley 4a provided on the output shaft of the photosensitive body driving motor 4 and a photosensitive body pulley 7. In addition, the pulley 7 is joined so as to transmit torque through the boss part of the inertia member (a balance wheel) 5 coaxially fixed on the edge of the shaft 9 and the elastic connecting member 6. With this constitution, it is possible to prevent the unevenness of rotating speed of the motor 4 by torque fluctuation due to carrying a transfer sheet from being transmitted to the photosensitive belt 1. |
