| 摘要 |
PURPOSE:To enhance the quality of image by decreasing speed variation of the rotor of an electrophotographic image output apparatus. CONSTITUTION:The rigidity of a drive system consisting of a rotary drums 2 and a driving shaft 13 is sunk, or otherwise the inertial moment of the drive system is increased to sink the natural frequency, and thereby the natural frequency of the drive system is made unidentical to the frequency of speed variation to be transmitted to the drive system. Thereby resonance of the rotary drum 2 is prevented and speed variation is decreased to lead to enhancement of the image quality. |
