An image forming apparatus including a magnetic flux generating device, a fixing unit configured to heat in accordance with the magnetic flux from the magnetic flux generating device, the fixing unit having a heating element including a magnetic material, a current detection unit configure to detect a value of a current supplied to the magnetic flux generating device, a temperature sensor configure to detect a temperature of the heating element, and an abnormal status detecting unit configured to detect an abnormal status of the current based on a result of comparison between the value of the current detected by the current detection unit and a threshold is provided. The abnormal status detecting unit is configured to vary the threshold based on the temperature detected by the temperature sensor.