A scanning device includes a guide screw rod with a motor and a gear device as parts of the scanning module. Z1 is \u2550O, \u2550S, \u2550NOR11. The lever piston too can be hollow or manufactured from a material lighter than the medium used. The recording ring buffer rapidly stores, in response to emit a sound of the musical sound data being supplied, the musical sound data. The PAN modem is disabled for periods shorter than a maximum time which guarantees success transmission or retransmission of the PAN data.