Print attributes are set in print type where a plurality of original paper images are arranged on at least one surface of print paper so that useless print can be prevented. A central opening is formed at a central portion of the top part. A lower end portion of the downward-extending portion is not covered with the second insulating film. The conductive coil spring is attached to the metal base in an electrically conductive manner with the nozzle suction surface being exposed to an inner peripheral side of the coil spring. The apparatus includes an example regulator valve and an example automatically-adjusting or self-adjusting amplifier valve to maintain fluid flow during low downstream demand fluid flow conditions, and to maintain the operational accuracy and stability of the regulator valve during higher downstream demand fluid flow conditions.