| 摘要 |
PURPOSE:To make inferior image hardly occur even in the case where the recovered toner is used. CONSTITUTION:A developing device 10 is used for a copying machine, in which the recovered toner removed and recovered from a photoreceptor drum 8 and the new toner are mixed to perform the development. This developing device 10 is provided with a first hopper 30, a second hopper 31, a mixing and adhering part 32 and a control unit 40. The first hopper 30 stores the new toner. The second hopper 31 stores the recovered toner. The mixing and adhering part 32 mixes the new toner stored in the first hopper 30 and the recovered toner stored in the second hopper 31 to adhere them to the photoreceptor drum 8. The control unit 40 changes the mixing ratio of the mixing and adhering part 32. |
