Patent ID: 8750778

Claim:
A laser fusing apparatus, comprising: a laser light source for emitting a laser beam; a conveyance belt for conveying a sheet with a toner image being transferred thereon and guiding the sheet to an irradiation region in which the toner image is to be irradiated with the laser beam from the laser light source; a heat pipe including a heat receiving portion to receive heat generated by the laser light source and a heat releasing portion to supply the heat to the conveyance belt; a fuser control section for controlling the laser light source, so that the laser light source irradiates the laser beam to the toner image when the toner image passes the irradiation region, thereby fixing the toner image onto the sheet; and a temperature sensor for detecting a temperature of the conveyance belt, wherein the heat pipe transfers heat from the heat receiving portion to the heat releasing portion, the conveyance belt heats the sheet and the toner image with the heat supplied from the heat radiation section, and the fuser control section controls an irradiation amount of the laser beam according to the temperature of the conveyance belt detected by the temperature sensor.