A system and method for detecting an error in data received from a memory of a replaceable printer component includes providing a first parity bit associated with a first data item. The first data item and the first parity bit are stored in the memory. The printer includes a plurality of electrically...http://www.google.se/patents/US6616260?utm_source=gb-gplus-sharePatent US6616260 - Robust bit scheme for a memory of a replaceable printer component