A fixation apparatus for fixing a developer image to a recording medium includes: a fixation belt; a heater member configured to generate heat by a resistance heating element and heat the fixation belt; and a pressurization member provided at a position opposed to the fixation belt with the heater member interposed in between and configured to press the heater member against the fixation belt while being in contact with the heater member. The pressurization member includes a temperature adjustment part provided near an end portion in the longitudinal direction of the pressurization member and designed to control an amount of heat transmitted from the heater member.