An image forming apparatus includes a CPU and a gesture detection part. The gesture detection part outputs data for a gesture corresponding to a hand action of a user present in front or in the vicinity of an apparatus body, to the CPU. The CPU detects presence or absence of the gesture and the type of the gesture in accordance with output from the gesture detection part. The CPU, upon detecting the gesture, checks details of the gesture against details of the preregistered, registered gesture, and if the detected gesture is the registered gesture, the CPU executes processing allocated to the detected, registered gesture.