Patent ID: 8755723

Claim:
An image forming apparatus, comprising: a carrier that carries a toner image; a transfer member electrically-grounded and located on an outer surface of the carrier; a facing transfer member that faces an inner surface of the carrier, wherein the facing transfer member has a transfer bias applied thereto that is an alternating current (AC) voltage including a superimposed voltage of a direct current that has a same polarity as the toner image; and a charge eliminator located downstream from the transfer member in a direction of recording medium movement and that eliminates electric charge from the recording medium, wherein the charge eliminator has one of a first AC voltage and a second AC voltage, the second AC voltage includes a superimposed voltage of a direct current applied thereto, and wherein a frequency of the AC voltage applied to the facing transfer member and the AC voltage applied to the charge eliminator is set to be the same, and a phase difference between the transfer bias applied to the facing transfer member and the AC voltage applied to the charger eliminator is set to be equal to or less than ¼ cycle.