| 摘要 |
PURPOSE:To improve a position accuracy of a photosensitive body by providing a main roll, a driven roll and two auxiliary rolls. CONSTITUTION:This device is constituted so that a belt-shaped photosensitive body 18 is engaged to a developing device 9, a paper peeling process, a glass fiber lens 6, and a transfer electrifier 11, in the part supported by a main roll 16, in the part supported by a driven roll 17, in the part supported by an auxiliary roll 201, and in the part supported by an auxiliary roll 202, respectively. In this way, by supporting the belt-shaped photosensitive body 18 by four parts made to contact by pressing by four rolls from its rear side, a desired position accuracy can be held, and also, a sag of the belt-shaped photosensitive body 18 can be eliminated, too. |
