| 摘要 |
<p>PURPOSE:To precisely obtain the parallelism and to prevent the occurrence of the winkles of a transfer form caused by its twisting and the soiling of an image by providing a frame body rotatively supporting a transfer roller and a center shaft supporting the frame body so as to rock it, and regulating the parallelism of the transfer roller and a resist roller by means of the center shaft and the resist roller abutted thereon. CONSTITUTION:A transfer roller contact/uncontact means has the frame body 15 rotatively supporting the transfer roller 7, the center shaft 18 supporting the frame body 15 so as to rock it against an image forming device main body 6, and a cam 22 rocking the frame body 15. An intermediate member composed of a positioning plate 26 is fixed on the center shaft 18, and the center shaft 18 is abutted on the resist roller 9 via the intermediate member. On the other hand, since the center shaft 18 and the transfer roller 7 are arranged in parallel in advance, as well, the resist roller 9 and the transfer roller 7 are arranged so that both center axis lines are highly accurately in parallel each other.</p> |
