A fuser may include a rotatable member, a belt, a pressure member, and a sliding member. The belt and rotatable member may form a nip portion. The sliding member may be sandwiched between an inner peripheral surface of the belt and the pressure member. The sliding member may include a front surface, which faces the inner peripheral surface of the belt. The front surface may include a plurality of dimples designed to catch lubricant that moves along ridges between the dimples.