A printing device has a replaceable component. Printing by the printing device utilizes the replaceable component. Printing with the printing device is stopped when an end-of-life condition is detected for the replaceable component. A list of one or more identifiers (IDs) is output for pending print...http://www.google.com.hk/patents/US7230730?utm_source=gb-gplus-share專利 US7230730 - Selective printing after consumable exhaustion