Patent attributes
Desired application data can be printed in a desired printing condition even if a computer being used does not have appropriate application software or a printer driver installed therein. Each of proxy printing transmission units sends proxy printing request information comprising the application data to be printed and printing setting information as the printing condition to a network. Each of proxy printing judgment and processing units receives the proxy printing request information from the network, and compares the proxy printing request information with proxy printing enabling information comprising the type of application software and printing enabling setting information in a printer driver installed in a corresponding one of computers. If the proxy printing enabling information matches the proxy printing request information, the application data are sent to the computer having the match and converted into PDL data that are printed from a corresponding printer.