| 摘要 |
PURPOSE:To keep a registering performance excellent in superposing images even if there is a load fluctuation of a photosensitive drum during forming an image by eliminating a rotation fluctuation, applying a constant rotation load without a backlash when a disturbing load is generated. CONSTITUTION:For forming a color image by an image forming device, a transfer belt and a cleaning blade, which are in sliding contact with a drum 101 in an initial stage of a first rotation of a photosensitive drum 10, are separated from it after development of yellow toner to be kept apart for the second and third rotation, and they are brought into sliding contact with the drum 101 for the fourth rotation after development of black toner to generate a load fluctuation at the photosensitive drum 10, thereby effects of the load fluctuation of the photosensitive drum 10 generated by getting in contact with or apart from of the transfer belt and the cleaning blade can be almost eliminated. |
