| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a failure in contact caused by variation in the dimension of the contact part of a shaft with a terminal by allowing the terminal consisting of a conductive member to press-contact with the part formed to a tapered shape of the shaft provided inside a photoreceptor drum. SOLUTION: A conductive elastic body grounding terminal 4 is fixed in a flange 2, electrically grounded in the photoreceptor drum 1 and brought into electrical contact with the tapered part of a conductive flange shaft 3 at two places with an equal interval. At this time, each deviation in the length (f) of the conductive flange shaft 3, the attachment position (d) of the conductive elastic body grounding terminal 4 and the length (b) of the neck of the grounding terminal 4 is specified, so that the failure in the contact of the shaft 3 with the grounding terminal 4 never occurs. Further, force exerted from the ground terminal 4 to the shaft 3 is applied toward the center of the shaft 3 from two upper and lower places. Thus, the shaft 3 is never shifted from the center of the drum 1, because the sum total of the force becomes vectorially zero. |
