In a condition that a printing device cannot be used, print can be requested to other print managing device. A center server 102 includes a print server information storage device 210 for registering vacant status of printing devices managed by a plurality of print servers 103, and each print server...http://www.google.es/patents/US7170623?utm_source=gb-gplus-sharePatente US7170623 - Transferring print data between print management apparatuses
Transferring print data between print management apparatuses
