Patent ID: 8594546

Claim:
An image forming apparatus comprising: an image bearing member for carrying a toner image; an endless intermediary transfer belt which is movable along an endless path; a transfer member, including a contact portion contacting an inner surface of said belt, for transferring the toner image from said image bearing member onto a surface of said belt; a voltage source for applying a voltage to said transfer member; a supporting member having a supporting portion for supporting said transfer member; and an urging member for urging said supporting member in an urging direction toward said belt, said urging member, said supporting portion and said contact portion being disposed in the order named along the urging direction, wherein said supporting member is rotatable during movement of said belt, about an axis of a rotational shaft so as to move in a direction perpendicular to a moving direction of said belt, and wherein said urging member urges said supporting member to effect said contact portion to said belt during movement of said belt.