| 摘要 |
PURPOSE:To make the structure of an endless belt of electrostatic latent image developing sensitive paper for an electrophotographical duplicator simple and compact and to positively prevent displacement of the endless belt without imparting so great external force. CONSTITUTION:The apparatus of this invention comprises three or more roller elements 31, 32, 33 and an endless belt 13 stretched around the rollers. At least one of the above three or more roller elements is used as a roller 33 for correcting displacement of the belt and provided at one end thereof with a flange portion 33a for restricting movement of the belt in a direction parallel to the axes of the roller shafts. Further, at least two of the above three or more roller elements are designed to rotate around axes substantially parallel to each other. On the other hand, the roller 33 for correcting displacement of the belt is urged by spring means 48, 50 in a direction imparting tension to the belt 13, and the spring means 48 is designed to exert a greater spring force then spring means 50 which is disposed on the side where flange portion 33a of roller 33 is provided. |
