| 摘要 |
PURPOSE:To prevent the snaking of an endless belt certainly, by setting a guide member which guides the belt when it is fitted on or taken off a roller, correspondently with each roller, and holding a rib formed on one end of the inside of the belt, between the end of the guide member and a step on the end of the roller. CONSTITUTION:When a copying machine is formed by stretching a belt sensitive body 6 around a driving roller 11, a tension roller 12 and driven rollers 13, 14 guides GD1-GD4 which guide the belt sensitive body 6 when it is fitted on or taken off each of the rollers 11-14, are set at the rollers 11-14 supporting corner parts of one side-board SB1 out of both side-boards SB1, SB2 which support the both ends of each of the rollers 11-14. At this time, on one side end of the inner circumference of the belt sensitive body 6, a rib 120 is formed extendedly over the all circumference, and on one side end of each of the rollers 11-14, a step is formed to receive the said rib 120. Then, the snaking of the belt sensitive body 6 can be prevented, by holding the rib 120 between the end 140 of each of the guides GD1-GD4 and the said step. |
