Disclosed is a fixing apparatus which includes a first rotatable member
having an endless configuration, a second rotatable member in pressure contact
with the first rotatable member which causes a recording material bearing an image
to be nipped and conveyed at a pressure contact portion between the first and second
rotatable members, a temperature raising unit for raising temperature of a local
portion of the first rotatable member by reception of electric power supply, a
temperature detecting unit for detecting temperature of a location different from
the pressure contact portion with respect to a rotational direction of the first
rotatable member, a first control unit for feedback-controlling electric power
to be supplied to the temperature raising unit based on the temperature detected
by the temperature detecting unit, a setting unit for variably setting a set value
corresponding to electric power to be supplied to the temperature raising unit,
based on a temperature rise speed detected by the temperature detecting unit when
a predetermined amount of electric power is supplied, and a second control unit
for temporally supplying electric power corresponding to the set value set by the
setting unit to the temperature raising unit in timing close to timing in which
the temperature detected by the temperature detecting unit reaches a target temperature,
or timing close to timing in which the recording material rushes in the pressure
contact portion when the fixing apparatus is started up.