Patent ID: 9417549
Filing Date: 2016-08-16
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a rotatable photosensitive member; a charging member configured to charge said photosensitive member by being supplied with a DC voltage; an image forming station configured to form an image on said photosensitive member charged by said charging member to form an electrostatic image; a current detector configured to detect a DC current flowing to said charging member when said charging member is supplied with the DC voltage from a voltage source; an executing portion configured to execute pre-charging operation for charging, by said charging member, said photosensitive member which is rotating, after production of an image formation signal prior to image forming operation by said image forming station; and a controller configured to control an amount of rotation of said photosensitive member in the pre-charging operation on the basis of the DC current detected by said current detector during the pre-charging operation.