| 摘要 |
PURPOSE:To easily remove a photoreceptor with a simple structure by rotating a magnet enclosed in a photoreceptor drum, moving it to the position where the magnetic pole is never opposed to a toner hopper and a recovering roller, and then removing the photoreceptor drum. CONSTITUTION:When a photoreceptor drum 1 is separated from a toner hopper 6, a magnet 2 is rotated, and moved to the position B where the magnetic pole of the magnet 2 is never opposed to the toner hopper 6 and a recovering roller 8, and the photoreceptor drum 1 is then removed. Namely, at non- operation, the magnet 2 is moved to the peripheral area of the photoreceptor 1 where no magnetic toner 7 is present, or the position B. Thus, the toner 7 is never adhered to the photoreceptor 1 even when the photoreceptor 1 is removed from the toner hopper 6. The magnet 2 may be moved so that the magnet 2 is situated in the position B when a developing device is not operated, and automatically moved from the position B to the position A only when the developing device is operated. |
