| 摘要 |
An image forming apparatus includes a movable image bearing member; an image transfer member cooperative with the image bearing member to form a nip where an image is transferred from the image bearing member onto a transfer material, wherein the transfer member is constant-voltage-controlled during image transfer operation; wherein a voltage applied to the transfer member during constant voltage control is determined in accordance with a dimension of the transfer material measured in a direction perpendicular to a movement direction of the image bearing member. |
