Patent ID: 6963700
Filing Date: 2005-11-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image bearing member; a charging member, contactable to said image bearing member, for electrically charging said image bearing member at a charging position; and developing means for developing an electrostatic image formed on said image bearing member with a developer, wherein (i) when a first area on said image bearing member, which is going to be an image formation area is at the charging position, said charging member moves with a peripheral speed difference relative to said image bearing member, and (ii) when a second area on said image bearing member, which is a part of an area which is going to be a non-image formation area is at the charging position, said charging member moves substantially without a peripheral speed difference relative to said image bearing member, and wherein said developing means is supplied with a voltage so as to provide a collecting electric field for collecting the developer from the second area to said developing means.