Patent ID: 7505701

Claim:
An image forming apparatus for forming an image at a center reference position, the image forming apparatus comprising: a fixing device for fixing a toner image on a recording medium by a heating member; and a pair of discharge rollers arranged spaced apart from the center reference position by a predetermined distance on a downstream side, in a conveying direction of the recording medium, from the fixing device; wherein the fixing device includes a non-contact type temperature detection sensor for detecting a temperature of the heating member, and an unusual temperature rise preventing member for detecting unusual overheating of the heating member and stopping voltage supply to the heating member, and an opening for temperature detection of the non-contact type temperature detection sensor and the unusual temperature rise preventing member are positioned between the pair of discharge rollers, wherein the non-contact type temperature detection sensor is arranged so that a center part of the opening for temperature detection thereof is positioned between the pair of discharge rollers.