FIXING DEVICE, FIXING METHOD AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To surely remove soil by excellently bringing a cleaning roller into contact with a fixing roller. SOLUTION: This image forming device is equipped with the fixing device 20 where paper P to which a toner image is transferred is made to pass between a heat roller 24 and a press roller 25 which press-contacts with the roller 24 and whose diameter is gradually decreased from both ends to a center part, whereby the toner image is fixed on the paper P, and the cleaning roller 35 which is brought into contact with the roller 25 of the device 20 so as to remove the soil such as the toner adhering to the surface of the roller 25 when fixing operation is performed and whose diameter is gradually increased from both ends to the center part.