| 摘要 |
A photosensitive drum unit includes a photosensitive drum, a shutter having a rotation axis shaft which opens and closes to selectively enable access to the photosensitive drum, and a coupler, wherein a linear motion thereof causes a rotational motion of the shutter about the rotation axis shaft. The coupler is coupled to a rotation axis shaft of the shutter and is capable of changing a straight line motion to a rotational motion in a narrow space. In an image forming apparatus equipped with the photosensitive drum unit of the invention, a pressing unit mounted at a support frame of the photosensitive drum unit is pressably engageable with the coupler.
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