| http://www.w3.org/ns/prov#value | - means; [0124]FIG. 17 is a conceptual view in a case where a parallel plate capacitor is used as an electrostatic actuator of FIG. 3; [0125]FIG. 18 is a circuit diagram of an oscillation circuit including a capacitor comprising the electrostatic actuator of FIG. 3; [0126]FIG. 19 is a circuit diagram of an F/V converting circuit in the ejection failure detecting means shown in FIG. 16; [0127]FIG. 2
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