Patent ID: 8036574
Filing Date: 2011-10-11
Classification: G03G

Abstract:
1. An image forming apparatus for forming image on a recording medium, the image forming apparatus comprising: a photosensitive member; a motor; a belt configured to contact the photosensitive member; a drive member configured to rotate the belt, the drive member including a driven coupling; a drive coupling configured to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction such that the drive coupling can take an engagement position, at which the driving force is transmittable to the driven coupling while in engagement with the driven coupling, and a release position, at which the engagement with the driven coupling is released; a transfer member configured to transfer a toner image formed on the photosensitive member onto the recording medium carried on the belt or onto the belt; a voltage application unit configured to apply a voltage to the transfer member; and a control unit configured to execute control for causing the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position by drive of the motor and the driving force generated by the motor is transmitted to the driven coupling.