| 摘要 |
PROBLEM TO BE SOLVED: To mount an endless-shaped belt to an adequate position of a plurality of rolls including a driving roll, by evacuating a positioning member to a position in non-contact with the endless-shaped belt during image forming. SOLUTION: A rear side frame 32 and a front side frame that support a roll linked with an intermediate transfer body belt are pressed down to a prescribed position around a fulcrum. Thus, a first link 51 mounted to the rear side frame 32 is returned to the front side, and a second link 53 rotatably connected with the other portion of the first link 51 oscillated around a fulcrum 52. As a result, a positioning plate 57 integrally mounted to the other portion of the second link 53 via a support member 56 evacuates to a position that does not disturbs an image forming operation. In this structure, an endless- shaped belt can be mounted to an adequate position, and failure or damage can be prevented from occurring on the endless-shaped belt. |
