| 摘要 |
PURPOSE:To stabilize the cleaning performance by rocking a blade holding member which is provided freely rotatably on a revolving supporting shaft of a photosensitive drum, in the axial direction by an end face cam on one end face of the photosensitive drum. CONSTITUTION:When the copying operation is performed, the driving power of a device body is transmitted to a drum gear 9, and a photosensitive drum 1 is rotated, and an end face cam 8 provided on a drum gear 9 is rotated also. A blade holder 2 is energized by a compression spring provided between the end part of the drum 1 and the holder 2, and a projecting part 2a of the blade holder 2 is brought into contact with the slope of the cam 8 by the elastic force of this spring, and therefore, the holder 2 is always shaked in accordance with the height of the end face cam 8, thus, a blade 4 cleans the photosensitive drum 1 while rocking. |
