Importance

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Abstract

An image forming apparatus includes a photosensitive member, a charging member for electrically charging the photosensitive member to a first polarity, an intermediary transfer belt, a transfer member, a constant-voltage element, a voltage source, and a controller for executing an adjusting operation for applying at least a voltage of a second polarity, opposite to the first polarity from the voltage source to the transfer member during non-image formation in which both of primary transfer and secondary transfer are not effected. When the voltage of the second polarity is applied from the voltage source to the transfer member in the adjusting operation, the controller continuously applies the voltage for a time corresponding to a substantially integer multiple of a time required for one full turn of the photosensitive member.

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First Claim