| 摘要 |
PURPOSE:To execute an installing work easily and exactly, by projecting a boss of a photosensitive drum to the outside in the axial direction, holding it by a U-shaped holding surface, and raising and supporting it from the holding surface by a rotary shaft whose tip is thin. CONSTITUTION:A supporting body 290 has front and rear side plates 292, 294 which are parallel to each other at a prescribed interval, and is capable of slide- moving forward and backward by being guided by a rail 300. To the side plate 292, a handle piece 302 is fixed. A photosensitive drum 26 is charged to a U- shaped holding surface of holding bodies 310, 312 from its upper direction, and in a state that bosses 320, 322 have been made to press-contact to bottoms 310a, 312a, the axis of the photosensitive drum 26 is positioned a little lower than the axis of bearings 306, 308, and positions in the upper and lower horizontal directions, of the shape of the bosses 320, 322, and the bottoms 310a, 312a of the holding surfaces 310, 312 are decided. A rotary shaft 326 gets through a shaft 306, the boss 320, a guide cylinder 324, the boss 322 and the bearing 308 in order, and is connected to a device 328. |
