A printing system for distributing print requests submitted by one or more clients includes a server that receives the print requests, generates a print job from one or more print requests, and extracts attributes of the print job. A database contains attributes of the logical printers and physical printers...http://www.google.es/patents/US6687018?utm_source=gb-gplus-sharePatente US6687018 - System and method for distributing print jobs
