Patent ID: 7742722

Claim:
An image forming apparatus, comprising: a main body; an image forming assembly accommodated in the main body and adapted for forming a toner image based on an image data and transferring the toner image to a recording sheet; a withdrawable unit accommodated in the main body in such a manner as to be withdrawable to the outside; a fixing unit detachably mounted on the withdrawable unit, including a heating member and a pressure member held in contact with the heating member with a specified pressing force and adapted for fixing the toner image to the recording sheet with heat from the heating member by conveying the recording sheet having the toner image transferred thereto while nipping it between the heating member and the pressure member; and a temperature raising device located in the vicinity of the heating member to raise the temperature of the heating member when the fixing unit is mounted on the withdrawable unit, wherein the temperature raising device includes a mounting portion different from that of the heating member, and is fixedly attached to the withdrawable unit and is kept attached to the withdrawable unit even if the fixing unit is separated from the withdrawable unit.