| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stable printing quality by uniformizing the surface temperature of a heating roll without shortening the life of the heating roll even when printing conditions such as printing speed or paper to be used are changed. <P>SOLUTION: The surface temperature of the heating roll 5 having a plurality of heating lamps 6a, 6b, 6c and 6d for heating a toner image 2 is controlled by a control part by concurrently using temperature sensors 10a and 10b provided in a printing paper non-traveling area and temperature sensors 12a, 12b and 12c provided in a printing paper traveling area, and a control part 11 adopts a correction value different in a printing start period and in a succeeding printing continuing period as a correction value for the temperature sensor 12 being reference to turn on/off the respective heating lamps 6. <P>COPYRIGHT: (C)2004,JPO |
