| 摘要 |
An image forming apparatus and a fusing unit thereof. The fusing unit includes a press roller (21), a heating belt (22) to closely contact the press roller to form a fusing nip to apply heat and pressure to the printing medium onto which the visible image has been transferred, first (23) and second (25) support rollers disposed apart from each other to circulatingly support the heating belt, and an elastic support device (50) to elastically bias the first support roller and/or the second support roller in a direction away from each other to maintain a constant tension of the heating belt. |
