Patent ID: 6628905
Filing Date: 2003-09-30
Classification: G03G

Abstract:
An image forming apparatus, comprising:an image bearing member having a photosensitive portion on a conductive portion; charging means for charging said image bearing member; exposing means for exposing said image bearing member being charged to form an electrostatic latent image; developing the electrostatic latent image by a toner; transfer means for transferring a toner image on said image bearing member to a transfer material; image bearing member voltage applying means being electrically connected to the conductive portion of said image bearing member for applying a voltage having a polarity reverse to that of the toner to the conductive portion of said image bearing member; charging voltage applying means for applying a voltage to said charging means; developing voltage applying means for applying a voltage to said developing means; and transfer voltage applying means for applying only a voltage having a polarity reverse to that of the toner to said transfer means, wherein said apparatus has a cleaning mode in which, when an image forming is not effected, the voltage is applied to said image bearing member by said image bearing member voltage applying means and the voltage applied to said transfer means from said transfer voltage applying means is turned off or made lower than the voltage applied when the image forming is effected.