PHOTORECEPTOR DRUM, PHOTORECEPTOR DRUM UNIT DEVICE, IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING ROTATION OF THE PHOTORECEPTOR DRUM

摘要

PROBLEM TO BE SOLVED: To suppress color shift to the minimum even if a plurality of photoreceptor drums are deflected while they are driven to rotate.;SOLUTION: The plurality of photoreceptor drums 23m to 23k, at both ends of which first flanges 29m to 29k and second flanges 31m to 31k are arranged, respectively, are arrayed in parallel corresponding to toner with which a different color toner image is formed. Rotation driving parts 37m to 37k are respectively connected to the first flanges 29m to 29k of the photoreceptor drums 23m to 23k and individually drive and rotate the photoreceptor drums 23m to 23k. A rotation controller 43 controls the rotation driving parts 37m to 37k based on drum deflection information so that the individual photoreceptor drums 23m to 23k may rotate in a state where the maximum deflection or minimum deflection directions in a radial direction in the photoreceptor drums 23m to 23k agree with each other.;COPYRIGHT: (C)2011,JPO&INPIT