An image forming system having a print server for using a composite function image forming apparatus having a composite function of outputting a print job and a copy job, as a common output apparatus for print jobs requested by client users on a network and received from the network. The composite function...http://www.google.de/patents/US6597469?utm_source=gb-gplus-sharePatent US6597469 - Image forming system, management method of number of outputs from image forming system, and medium storing program for executing the method
