The invention provides an image forming apparatus including an intermediate transfer
belt composed of a resinous material, a transfer member for transferring a toner
image on the intermediate transferring belt onto a transfer material, and an opposing
member provided to be opposed to the transfer member across the intermediate transferring
belt. The transfer member and the opposing member can be mutually pressured, and
the intermediate transferring belt and the opposing member have an integrally measured
microhardness smaller than 97. Thus the invention provides an image forming
apparatus capable of preventing a transfer unevenness caused at the transfer of
the toner image from the intermediate transferring belt to the transfer material,
and an intermediate transfer unit which is detachably attachable to the image forming apparatus.
