| 摘要 |
PROBLEM TO BE SOLVED: To prevent sponge, filling a gap between a photoreceptor unit attachable/detachable to/from the inside of an image forming device main body and the end face of a ventilation duct, from being pulled apart when the photoreceptor unit is set. SOLUTION: To the end face of the main duct 3 which is fitted to the photoreceptor unit 1, the sponge 4a for filling the gap between the photoreceptor unit 1 and it is affixed, and Mylar 4b, a thin film, is affixed to the face of the sponge 4a situated on the side of the photoreceptor unit 1. Even in the case where, in order to attach/detach the photoreceptor unit 1, the photoreceptor unit 1 is inserted while pressed against the sponge 4a of the main duct 3, the sponge 4a is not pulled apart because the Mylar 4b is affixed to the surface of the sponge 4a, therefore falling of a pulled-apart piece of sponge onto a transfer belt 9 does not occur. |
