| 摘要 |
PURPOSE:To prevent a dew condensation from being generated on the surface of a photosensitive body by covering main drum and the surface of a driven roll with a heat insulating material. CONSTITUTION:A main drum 14 being a photosensitive body supporting member for driving to make a belt-shaped photosensitive body 17 run, and the surface of a driven roll 15 provided in parallel to its main drum 14 and also isolated from it are covered with heat insulating materials 16a, 16b, respectively, by which a photosensitive body running device is formed. As a result, a heat conduction between the main drum 14 or the driven roll 15, and the belt-shaped photosensitive body 17 is cut off, and also, in the process in which the photosensitive body 17 runs between the main drum 14 and the driven roll 15, the surface and the rear side of the belt-shaped photosensitive body 17 are exposed to the circumferential space so that a temperature of the photosensitive body follows easily a temperature variation of a circumferential atmosphere, generation of a dew condensation on the surface of the photosensitive body can be prevented. |
