Patent ID: 7256900

Claim:
A printer that is capable of data transmission via a network and receives print data to carry out printing, said printer comprising: a positioning unit that recognizes positional information representative of where said printer is located; a decision unit that receives print data, said print data in itself includes the positional information for said printer, wherein said positional information is given as data comprising a combination of a latitude, a longitude, and an altitude, and determines whether said print data are to be printed by said printer, based on the positional information; a printing unit that carries out printing with the print data when said decision unit determines that said print data are to be printed by said printer; a positional information output unit that outputs said recognized positional information via the network, wherein said positioning unit includes a GPS (global positioning system) configured to obtain said positional information representing where said printer is located by utilizing a phase difference between microwaves sent from at least three satellites.