| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the rotational accuracy of an electrophotographic photosensitive drum. <P>SOLUTION: In the process cartridge, driving force of a gear on a device body side is transmitted to the photosensitive drum 7 through a twisted coupling hole and a non-twisted coupling projection in a state where the part nearer to a drum shaft than the edge of the coupling projection abuts on the entrance part of the coupling hole. <P>COPYRIGHT: (C)2007,JPO&INPIT |
