ROTATIONAL DRIVING DEVICE OF PHOTORECEPTOR DRUM, PHOTORECEPTOR DRUM, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To reduce the number of times of generation of waiting time by reducing the number of times of correcting stop position deviations in the case of using a DC brushless motor for the drive of a photoreceptor drum in an image forming apparatus.;SOLUTION: In a rotational driving device using the DC brushless motor for driving the photoreceptor drum and individually driving a black photoreceptor drum and a color photoreceptor drum and an image forming apparatus or the like using the rotational driving device, phase matching is controlled so as to be determined by the numbers of stops of the black and color photoreceptor drums, and in order to reduce the number of corrections under control, counting of the number of stops is changed in each mode.;COPYRIGHT: (C)2006,JPO&NCIPI