Patent ID: 8543024

Claim:
A fixing device comprising: a first irradiation unit that irradiates a laser beam in a first irradiation region toward a recording medium in which unfixed image is formed on both sides thereof using an image forming material capable of being heated and fixed; a second irradiation unit that irradiates a laser beam toward a second irradiation region disposed in rear side of the first irradiation region of the recording medium; an image information acquiring unit that acquires image information of the first irradiation region; a coating information acquiring unit that divides the first irradiation region into one or a plurality of divided regions, and that acquires coating information that relates to the coating level by the image forming material within the divided region on the basis of the image information acquired by the image information acquiring unit; a transmission information acquiring unit that acquires transmission information that relates to the laser beam which is irradiated from the first irradiation unit to the first irradiation region and passes through the recording medium on the basis of the coating information acquired by the coating information acquiring unit; an irradiation control unit that controls the irradiation energy of the second irradiation unit based on the transmission information acquired by the transmission information acquiring unit.