FIXING DEVICE

PURPOSE:To apply oil uniformly to a fixing roll and control easily flowing-out of oil by pressing an oil storage vessel, where a porous elastic member is set to the bottom part, to a heat roll from the top of the heat roll to the upstream side in the rotation direction. CONSTITUTION:When an oil applying means 13 where a porous elastic member 16 is set to the bottom part of an oil storage vessel 14 is pressed to a heat roll 6, the roll 6 is much deformed in the upstream side in the rotation direction because a radius (r) of the elastic member 16 is smaller than a radius R of the roll 6, and pores of the elastic member 16 are closed, and silicone oil in not flowed out at all. Since the elastic member 16 is arranged from the top of the roll 6 to the upstream side, oil is not flowed out when the roll 6 stops rotating, and application defects due to clogging are prevented when the roll 6 is rotated because the part where pores are closed by compressive deformation functions as a blade to remove dust. Consequently, oil is applied uniformly and is economized, and dirt of the device and the bottom is prevented.