Patent ID: 7197264

Claim:
An image forming apparatus, comprising: a toner image carrier; a transferring section to transfer a toner image on the toner image carrier to a to-be-transferred body; a temporarily-collecting member, having an axis, to rotate around the axis in contact with the toner image carrier, thereby temporarily collecting post-transfer residual toner on the toner image carrier and expelling collected toner to the toner image carrier; an electrode member which is in contact with the temporarily-collecting member at a position other than the position where the temporarily-collecting member is in contact with the toner image carrier; and a voltage applier to apply voltage to the electrode member, wherein a contact face of the electrode member which is in contact with the temporarily-collecting member is an inwardly curved face, the contact face of the electrode member contains a first position upstream of a rotation direction of the temporarily-collecting member and a second position downstream of a rotation direction of the temporarily-collecting member, wherein the first position and the second position are within a contact range of the temporarily-collecting member, and a pushing force at the second position is stronger than a pushing force at the first position.