To provide a fixing device and an image forming device that have a heat roller designed so as to further decrease irregularity in fixing.

The fixing device is characterized in that it has the heat roller which is formed out of a translucent substrate, a translucent elastic layer, and a heat absorbing layer, in which two support members supporting the translucent substrate from the vicinities of the ends of the translucent substrate are restricted is position by being brought into contact with the internal surface of a cylindrical metal mold or the heat absorbing layer stuck to the internal surface, and the translucent elastic layer is formed using a metal mold having such a structure.