Patent ID: 7986903

Claim:
A transfer device comprising: a transfer belt; at least one pair of rollers to rotatably support the transfer belt; a supporting unit to rotatably support both ends of the pair of rollers; and an eccentric unit to movably support a first end of a first roller of the pair of rollers with respect to the supporting unit such that the first end deviates from an axis of the first roller, wherein the first roller is a tension roller having a shaft protruding from both ends and being elastically supported by a first and a second elastic member which provide tension to the transfer belt, and the eccentric unit supports a first end of the tension roller to deviate from an axis of the shaft, where the supporting unit comprises: a frame; and a first and a second support member to allow the first and second ends of the tension roller to be securely supported on the frame, the first and second support members individually including a first shaft hole and a second shaft hole, respectively, into which the first and second ends of the tension roller are inserted, wherein the eccentric unit comprises: the first elastic member; a first supporting projection protruding from the frame to support a first end of the first elastic member; and a second supporting projection positioned such that an arbitrary centerline is located below an arbitrary centerline of the first supporting projection, the second supporting-projection protruding from the first support member so as to face the first supporting projection, to support a second end of the first elastic member.