A networked copier and printer system permits on-line payment for use of copier or computer printer, charging against a positive balance customer account stored at a central station, and permits customers to add to their copier account. A network transaction station accepts a customer ID from a magnetic...http://www.google.se/patents/US6712266?utm_source=gb-gplus-sharePatent US6712266 - Network transaction and cash-accepting add-value station
