Speed control for color image forming apparatus with residual toner cleaning

摘要

A color image forming apparatus includes a driving member to drive a rotational photoreceptor to rotate, a speed detector to detect speed information of the photoreceptor, and a mechanism in which a pressure-contact and pressure-contact release operations of a cleaning member are carried out on the photoreceptor. The apparatus further includes a drive controller by which the rotation speed of the photoreceptor is controlled according to a signal output from the speed detector so that the rotational speed of the photoreceptor remains equal to a predetermined value.