| 摘要 |
PURPOSE:To restrain the speed fluctuation of a photoreceptor caused by the vibration of a driving system or load fluctuation and to avoid the deterioration of image quality caused by the speed fluctuation, etc. CONSTITUTION:Sliding members 40 supported on the inner side surfaces of a cartridge 30 and obtained by integrating a surface layer consisting of a resin sheet with a viscoelastic layer consisting of a foamed resin material are allowed to press-contact with the sliding surfaces 101A and 102A of flanges 101 and 102 at the side ends of the photoreceptor drum 10. Then, the unevenness of rotating speed caused by the vibration transmitted to the photoreceptor and the load fluctuation imposed on the photoreceptor itself is eliminated owing to the viscocity of the viscoelastic layer with the rotation of the photoreceptor. |
