| 摘要 |
PURPOSE:To enhance the quality of image by decreasing speed variation of the rotor of an electrophotography image output apparatus. CONSTITUTION:A rotary member 18, in which an oil, etc., having a high viscosity resistance, is contacted with a sensitive drum 2 in its position not related with image formation, and the damping coefficient ratio zeta of the drum 2 is raised so that a momentary speed variation can be damped quickly, and thereby the rotating speed is kept constant. Thereby the speed variation of the sensitive drum 2 as a rotor is decreased, and the quality of the image is enhanced. |
