| 摘要 |
PROBLEM TO BE SOLVED: To provide an image carrier unit capable of attaching a bearing member containing a regulation part to a holding part of an image carrier unit at high rigidity, allowing pulling out of the image carrier in a rotational axis line direction.SOLUTION: A protruding part 45c is coaxial with a rotational axis line of a photosensitive drum 27, and a tip end part forms circumferentially a part of a disc which is larger than the photosensitive drum 27. At a photosensitive drum container 28, there is provided a drum bearing fitting hole 28a in which a photosensitive drum bearing 45R can be inserted in the rotational axis line direction, to hold the photosensitive drum bearing 45R. A key groove form part 28b allows the protruding form part 45c to pass in the rotation axis line direction. In the key groove form part 28b, a phase of the protruding form part 45c at the time when the photosensitive drum bearing 45R is attached at a normal position is set to be different from a phase where the key groove form part 28b is provided at the photosensitive drum container 28.SELECTED DRAWING: Figure 9 |
