Air taken in from the paper exit cooling fan (FAN7) at the front is discharged from the fusing exhaust fan (FAN1) at the rear to outside the machine. By cooling the paper immediately after fusing, not only cooling of the fusing exit sensor (S27) but also reduction of stored heat of the stacked paper and reduction of curl are realized. This also serves to prevent condensation on the paper discharge guide sheet. As a measure against odor, a deodorization filter is installed downstream from the fusing exhaust fan (FAN1).