A postage printing system includes a transport device for feeding an envelope in a path of travel through the postage printing system, a printer for printing a postal indicia and an ad slogan on the envelope, and a control system in operative communication with the transport device and the printer. The...http://www.google.com.au/patents/US7424436?utm_source=gb-gplus-sharePatent US7424436 - Mailing system having flexible printing of messages
