According to an embodiment, a fixation device has a fixation belt, a coil, and a heat-generation auxiliary plate. The coil is opposed to the fixation belt and the heat-generation auxiliary plate and generates magnetic flux. The heat-generation auxiliary plate assists heating of a recording medium by the fixation belt. The heat-generation auxiliary plate has a magnetic layer and a non-magnetic layer formed on the magnetic layer and contacting a base layer of the fixation belt. The non-magnetic layer is harder than the base layer of the fixation belt.