The image forming apparatus comprises: a plurality of ejection ports through which liquid is ejected toward a prescribed recording medium; a plurality of pressure chambers which are respectively connected to the plurality of ejection ports; a plurality of first actuators which respectively change volume of the plurality of pressure chambers; a common liquid chamber which is connected to the plurality of pressure chambers; a second actuator which changes volume of the common liquid chamber; and a drive unit which supplies drive signals to the first actuators and the second actuator, such that the first actuators cause the volume of the pressure chambers to contract to eject the liquid through the ejection ports and subsequently to expand the volume of the pressure chambers, and causes the second actuator to contract the volume of the common liquid chamber after the volume of the pressure chambers has been expanded.