Patent ID: 7546050

Claim:
A fixing apparatus including a fixing roller and a pressurization roller pressured by the fixing roller wherein a transfer paper holding a yet-to-be-fixed toner image passes through between the fixing roller and a nip part of the pressurization roller and the yet-to-be fixed toner image is fixed, said fixing apparatus comprising: a first heating member to which power is supplied from commercial power; an auxiliary power supply including a plurality of capacitor cells and configured to charge the power supplied from the commercial power; a second heating member to which the power is supplied from the auxiliary power supply; a temperature detection part configured to detect a surface temperature of the fixing roller; a switch part configured to switch a connection to the plurality of capacitor cells so as to supply the power to the fixing apparatus based on a detection signal from the temperature detection part; and a count part configured to count image formation sheets that are processed in continuation, wherein the switch part is configured to change the connection to the plurality of capacitor cells based on a count result of the count part.