Patent ID: 7751752
Filing Date: 2010-07-06
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a rotatable photosensitive member; a charging device configured to charge said photosensitive member; an electrostatic image forming device configured to form an electrostatic image on the photosensitive member charged by the charging device; a developing device configured to collect toner attached to the photosensitive member and develop the electrostatic image with toner; a transfer device configured to transfer a toner image formed on the photosensitive member onto an image-receiving member; a rotatable brush being in contact with the photosensitive member at a position downstream of the transfer device and upstream of the charging device in a rotational direction of the photosensitive member, the rotatable brush configured to supply electrical charge to the residual toner that is not transferred by the transfer device; and a control unit configured to control the rotatable brush so that the rotatable brush rotates at a first peripheral speed slower than a peripheral speed of the photosensitive member while an image is formed and so that the rotatable brush rotates at a second speed faster than the peripheral speed of the photosensitive member while an image is not formed.