| 摘要 |
PURPOSE:To constitute so that the surface of a photosensitive drum is scarcely flawed, and also to utilize effectively the capacity of a toner collecting tank by operating a blade vibrating means and a toner collecting tank vibrating means by the same vibrating means. CONSTITUTION:When a photosensitive drum 1 and a gear 2 rotate in the directions (a), (b), gears 3, 4 also rotate in the directions (c), (d). A cam wheel 5 is rotated in the direction (d) by the gear 4, and a rod 9 abutting to the cam surface of a saw tooth-like cam 5a of the wheel 5 executes a reciprocating motion by a coil spring 10. By this vibration, a toner adhering to the tip of a blade 6 drops down into a collecting tank 11, and also the toner is dispersed on the whole surface in the tank 11 without forming its heap. The toner collected in the tank 11 is returned to a toner supplying tank by a screw conveyor 12. In this way, a blade holding member 7 and the tank 11 are vibrated simultaneously, therefore, the toner does not adhere to the tip of a blade 6a, and also the dropped toner does not form a heap in the tank 11. |
