A replaceable printer component having an integral memory for use in a printing system includes a semiconductor die and a plurality of circuits formed on the semiconductor die. Each circuit is associated with and indicates the state of a bit in the memory. The memory stores a plurality of functional...http://www.google.com.au/patents/US6769757?utm_source=gb-gplus-sharePatent US6769757 - Robust bit scheme for a memory of a replaceable printer component
