A diaphragm-type solenoid valve has a valve body 3 fixed onto a base, a diaphragm 4 for opening and closing a valve seat 13 provided to an inner end of a second port 12, a plate 5 for forming a driving chamber 14 between the plate 5 and the diaphragm sandwiched between the plate 5 and the valve body 3, and a pilot valve 6 for supplying pilot fluid pressure to the driving chamber 14. A rotation member is attached to the toner stirring member and revolves around a rotational shaft of the toner stirring member. The read-reset amplifier operates in a first mode in which a reset voltage is applied to the second column line, and in a second mode in which pixel output signals are buffered from the first column line. The second radiating strip and the connection strip are configured to function as a second PIFA operating in a lower frequency band. The resulting MTJ stack has an ultralow RA around 1 ohm-\u03bcm2 and maintains a high magnetoresistive ratio characteristic of a single metal oxide tunnel barrier layer.