| 摘要 |
PURPOSE:To easily and quickly attach and detach a photosensitive drum by engaging and disengaging a rotation driving part and a supporting shaft in accordance with the turning operation of a guide rail. CONSTITUTION:A driving part connecting/disconnecting means 6 is provided which disengages a rotation driving part 7, which is detachably engaged with a supporting shaft 2 of a photosensitive drum 1, from the supporting shaft 2 in accordance with the turning operation of a guide rail 42 to a prescribed position and enables the rotation driving part 7 to engage with the supporting shaft 2 in accordance with the turning return operation of the guide rail 42. Consequently, the rotation driving part 7 is disengaged from the supporting shaft 2 in accordance with the turning operation by the driving part connecting/disconnecting means 6 and the photosensitive drum 1 can be immediately detached along the guide rail 42 when the guide rail 42 is turned to a prescribed position. The photosensitive drum 1 is set along the guide rail 42 and the guide rail 42 is returned by turning in this state, and the photosensitive drum 1 is turned on demand to position the supporting shaft 2 and the rotation driving part 7, thereby engaging the rotation driving part 7 with the supporting shaft 2. Thus, the photosensitive drum 1 is easily and quickly attached and detached. |
