An image forming apparatus includes a display device, a gesture sensor, and a control device. The control device functions as a controller. When the gesture sensor detects a first gesture, the controller sets the image forming apparatus to a suspend mode and starts counting a first time. When the first time reaches a first threshold value, the controller sets the image forming apparatus to a waiting mode and allows the display device to display a notification indicating the waiting mode. When the gesture sensor detects a second gesture while the notification is displayed, the controller starts counting a second time. When the second time reaches a second threshold value, the controller turns off power of the image forming apparatus.