Patent ID: 8112010

Claim:
An energization control device comprising: a heating unit heated upon receiving power supplied from an alternating-current power supply; a temperature detecting unit configured to detect a temperature of the heating unit; a memory storing data of a power energization pattern in which power energization and non-power energization are performed for each power energization percentage of alternating current power supplied to the heating unit; and a power control unit configured to determine a power energization percentage of alternating current power applied from the alternating-current power supply to the heating unit based on the detected temperature and read out a power energization pattern for the heating unit from the memory according to the determined power energization percentage, wherein, when a first power energization percentage is changed to a second power energization percentage, the power control unit determines a power energization pattern at the second power energization percentage based on a power energization pattern at the first power energization percentage and a power energization pattern read out from the memory according to the second power energization percentage.