The present invention provides a method for sending faxes over the Internet, in which the sender gets a confirmation immediately after sending the facsimile message over a regular, uncontrolled Internet connection, and using standard modems or a Local Area Network connection to the Internet. The hydraulic selector valves 81,82 are operated based on the maximum pressures to produce control signal pressures from a pressure of a pilot pump 2. After an image is generated, the method determines if the generated image is within the determined one or more trapezoids, and renders the components of the generated image that are determined to be located within the one or more trapezoids. A second magnetic assembly is disposed at the valve actuator. The ferroelectric film can be used for any of ferroelectric memories of 1T1C, 2T2C and simple matrix types. The impedance converting circuit converts an impedance to decrease a difference in impedance to be matched by the matching circuit, thereby decreasing a change in the output impedance with a moving amount of a capacitance control of one of variable passive elements of the matching circuit, such as a load capacitor and a tuning capacitor.