Image forming apparatus with movable surface-positioning member

An image forming apparatus comprising:

• an image forming member configured to form a toner image on an intermediate transfer body;
• wherein the intermediate transfer body is configured to form a loop, having an inner surface and an outer surface,
• wherein the outer surface is configured to carry a toner image, and
• wherein the intermediate transfer body is configured to transport the toner image in a transporting direction;
• a transfer member that is configured to contact the outer surface of the intermediate transfer body,
• wherein the transfer member is configured to transfer the toner image on the intermediate body to a recording medium;
• a surface-positioning member that is disposed upstream of the transfer member and downstream of the image forming member in the transporting direction,
• wherein the surface-positioning member is configured to contact the inner surface, and
• wherein the surface-positioning member is movable in a direction that intersects an in-plane direction of the intermediate transfer body;
• a receiver configured to receive information associated with a thickness or a basis weight of the recording medium;
• a controller configured to control a position of the surface-positioning member in response to the received information before the recording medium passes through a contact portion where the transfer member and the intermediate transfer body contact,
• wherein the controller is configured to, in response to the thickness or the basis weight of the recording medium being less than or equal to a predetermined value, control the surface-positioning member to be moved in a backward direction towards an inside of the loop.

An image forming apparatus comprising:

• an image forming member configured to form a toner image on an intermediate transfer body;
• wherein the intermediate transfer body is configured to form a loop, having an inner surface and an outer surface,
• wherein the outer surface is configured to carry a toner image, and
• wherein the intermediate transfer body is configured to transport the toner image in a transporting direction;
• a transfer member that is configured to contact the outer surface of the intermediate transfer body,
• wherein the transfer member is configured to transfer the toner image on the intermediate transfer body to a recording medium;
• a surface-positioning member that is disposed upstream of the transfer member and downstream of the image forming member in the transporting direction,
• wherein the surface-positioning member is configured to contact the inner surface, and
• wherein the surface-positioning member is movable in a direction that intersects an in-plane direction of the intermediate transfer body;
• a receiver configured to receive information associated with a thickness or a basis weight of the recording medium;
• and
• a controller configured to control a position of the surface-positioning member in response to the received information,
• wherein the surface-positioning member is movable relative to the transfer member,
• wherein the controller is configured to, in response to the thickness or the basis weight of the recording medium being less than or equal to a predetermined value, control movement of the surface-positioning member in a direction such that an angle between the intermediate transfer body and the transfer member upstream of the transfer member in the transporting direction becomes larger.