An image forming apparatus includes: a medium transport path which a medium is transported through; an image forming unit configured to form a developer image on the medium transported through the medium transport path; a fusing unit configured to fix the developer image formed on the medium to the medium; a temperature detecting unit configured to detect temperature in the image forming apparatus; and a controller operable to temporarily stop the transport of the medium in the medium transport path when the temperature detected by the temperature detecting unit is equal to or higher than a predetermined temperature.