Patent ID: 6970664

Claim:
A fixing apparatus, comprising: magnetic flux generation means for generating a magnetic flux, a heat generating member for generating heat by the magnetic flux generated by said magnetic flux generating means to heat an unfixed image on a recording material, detection means for detecting a temperature of said heat generating member, electric power supply means for supplying an electric power to said magnetic flux generation means so that a temperature of said heat generating member is close to a target temperature, on the basis of a detection result of said detection means, and electric power change means for changing the electric power supplied to said magnetic flux generation means without changing the target temperature, on the basis of information on a density of an image formed on the recording material, wherein when the density of the image formed on the recording material is high, said electric power change means increases the electric power supplied to said magnetic flux generation means, compared with a case where the density of the image formed on the recording material is low.