Patent ID: 6847795

Claim:
An image forming apparatus comprising: a main body case defining therein an inner space; an image forming unit that is disposed in the inner space and that performs image forming processes, the image forming unit forming an image on a sheet during each image forming process; a fan for cooling the image forming unit, the fan being capable of operating selectively in a first rotation speed, a second rotation speed, and a stopped state, the fan rotating faster in the first rotation speed of the fan than in the second rotation speed of the fan and not rotating in the stopped state; a condition-determining unit that determines whether a predetermined condition is met; a fan controller that controls the fan at the second rotation speed when the image forming unit performs an image forming process during a predetermined time period after the condition-determining unit determines that the predetermined condition is met; an electric power switch that turns on and off supply of electric power to the image forming unit; and a timer that measures whether a predetermined cooling interval has elapsed after the image forming unit completes an image forming process, the predetermined condition being start of a first image forming operation after at least one of the electric power switch turning on supply of electric power to the image forming unit and the timer measuring that the predetermined cooling interval has elapsed.