Abstract: A thermal fixing roller system includes a heater roller and a pressure roller between which a copy paper is driven to travel for fixing a toner image carried on the copy paper. A heater is disposed in the heater roller for maintaining the surface temperature of the heater roller around a preselected temperature. When the main power supply switch is switched on, the heater roller and the pressure roller are driven to rotate before the surface temperature of the heater roller reaches the preselected temperature. When the surface temperature of the heater roller reaches the preselected temperature, a ready lamp is energized, and the rotation of the heater roller and the pressure roller is terminated, at which the pressure roller is warmed up to a desired temperature.