Patent ID: 7155135

Claim:
An image forming apparatus comprising: an image bearing member that is rotatable; a charging member that is contactably provided to the image bearing member and charges the image bearing member, the charging member being capable of being applied with a first voltage which contains both an AC component and a DC component and a second voltage which does not contain an AC component and which contains a DC component, the first voltage being capable of being applied to the charging member at the time when the charging member charges a region to be an image forming region of the image bearing member; image forming means for forming an image of a developer on the image bearing member; cleaning means contactably provided to the image bearing member for cleaning the developer that remains on the image bearing member; and control means which allows a selection of either a first mode or a second mode, wherein in the second mode, a rotation time of the image bearing member at non-image forming time is prolonged to be longer than that in the first mode and the second voltage is applied to the charging member in the prolonged rotation time.