An image forming apparatus includes an image forming section, an output section, a sheet transport unit, an air blowing device, and an air exhaust device. The image forming section forms a toner image. The sheet transport unit transports in a region above the image forming section a sheet onto which the toner image has been fixed. A first channel causes air to pass from a downstream side to an upstream side in a sheet transport direction, the air blowing device applies an airflow by using the first channel, a second channel causes the air to pass from the downstream side to the upstream side in the sheet transport direction, and the air exhaust device exhausts the air by using the second channel.