An image processing apparatus includes display panels included in each of an operation unit 130 and a display unit 136, and a control unit causing the two display panels to successively make transitions to a power save mode if a prescribed time period has passed without any operation to the operation unit 130. If priority is given to the operation, the control unit first causes the display panel of display unit 136 to make a transition to the power save mode, and thereafter causes the display panel of the operation unit 130 to the power save mode. If the priority is given to the display, the control unit causes the display panel of operation unit 130 to make a transition to the power save mode, and thereafter causes the display panel of display unit 136 to make a transition to the power save mode. Thus, wasteful power consumption by the two display panels can be reduced.