Patent ID: 6651026
Filing Date: 2003-11-18
Classification: G03G,G05D

Abstract:
A fixing control apparatus for performing a fixing process by using a heat roller heated by an induction heating coil, comprising:a first temperature sensor positioned, around said heat roller, within a range of Â±45Â° from a portion where maximum heat is generated by said induction heating coil; a second temperature sensor positioned, around said heat roller, within a range of Â±45Â° from a portion where minimum heat is generated by said induction heating coil; and a central processing unit for performing switching control of a fixing control temperature concerning the temperature of said heat roller on the basis of temperatures sensed by said first and second temperature sensors, wherein when power supply to said induction heating coil is started, said central processing unit lowers the fixing control temperature and the pre-run start temperature, as the temperature sensed by said first or second temperature sensor rises.