Lexmark C720 Service Manual - Page 71

5024-001 Fusing Process 1. Silicone oil, supplied from the oil bottle, is applied to the fuser roller surface and the back-up roller. 2. The toner image is transferred on the paper, but not yet fused to the paper. 3. The transported paper (toner transferred on, but not fused to the paper) passes between the heater roller and the back-up roller. Each roller is heated to approximately150°C and receives approximately 156N, from the opposite heat roller. 4. When the paper carrying the toner image passes between the two heated rollers, the toner melts and is fused to the paper. 5. The fused paper is separated from the heater rollers and ejected from the printer. General Information 1-41