| 摘要 |
<p>A fixing device includes an irradiation unit, disposed opposite a recording medium, that includes laser light sources arranged in a direction crossing a movement direction of the recording medium and capable of emitting laser light with variable emission intensity and that irradiates a surface of the recording medium with the laser light emitted from the laser light sources in a substantially elongated irradiation region extending at a corresponding position in the arrangement direction of the laser light sources; an irradiation-width changing unit that changes the irradiation width of the irradiation region in a longitudinal direction thereof, with all the laser light sources of the irradiation unit turned on; and an irradiation-intensity adjusting unit that adjusts the irradiation intensity in the irradiation region having the irradiation width thereof changed by the irradiation-width changing unit to a predetermined required irradiation intensity.</p> |
