FUSION FIXING DEVICE CAPABLE OF REMOVING DEFORMATION OF COPYING SHEET

PROBLEM TO BE SOLVED: To provide a fusion fixing device to remove deformation of a copy sheet capable of preventing the fusion fixed image from vanishing and the resultant fusion fixed copy sheet from having a poor appearance. SOLUTION: The fusion fixing device includes a first set of rollers installed on a frame for forming a first roll gap which performs receipt and movement of a copy sheet 58. The first roller set includes a heating fusion fixing roller 92 and a pressure roller 98 positioned confronting it for formation of the first roll gap 99. A device 90 is equipped wit a second set of rollers 102 and 104 to form a second roll gap 109 for receiving a fusion fixed copy sheet from the first roll gap and moving. Each roller belonging to the second set has one hard facial layer 106, and the rollers make pressure contact with each other within the second roll gap so as to flatten the deformation in the fusion fixed copy sheet which is passing, and thereby the fusion fixed image on the copy sheet is prevented from vanishing and also the copy sheet from having a poor appearance.