| 摘要 |
PROBLEM TO BE SOLVED: To provide a means to prevent widening of a notch opening provided for the purpose of incorporating a photoreceptor drum into a frame body in a direction crossing the axis of the drum. SOLUTION: A bearing fitting hole 13h of a cleaning frame body 13 is provided with a segmental opening 13h1. The journal (projecting shaft) 37 of the photoreceptor drum 7 is positioned in the fitting hole through the segmental opening in the direction crossing the axial direction of the drum and a bearing 38 is engaged with the journal 37, and also a cylindrical part (not shown in figure) provided on the bearing 38 is fitted on the periphery of a circular-arch shaped rib 13h3 provided outwardly on the edge of the fitting hole. Thus, the segmental opening 13h1 is prevented from widening. Besides, additional members are not necessary since the bearing is used for preventing widening of the opening. |
