A press apparatus includes an inputting device, that enables a user of the press apparatus to input working pattern data representing the workpiece, and a display device, that displays a working pattern of the workpiece based on the inputted working pattern data. One example switching regulator includes a switch to be coupled to an energy transfer element of a power supply. Thus, the preformat information signals are recorded into the magnetic recording medium. Via the short range wireless network, transaction data is received from the wireless unit of the customer containing payment information. One of the loudspeakers is designated as the network head so as to be capable of searching for and setting up a wireless link with a remote peripheral capable of transmitting a coded audio signal andor a control signal. The system includes a bypass which allows the transfer fluid to continue to circulate past the exchange units while bypassing the ground loop.