Hewlett-packard Development Company, L.p.

Jesse Otto Sutherland, Iii

Jefferson Patrick Ward

Wesley R Schalk

Howard G Wong

Alex Michael Oaks

Peter Le Chevallier

Robert Taylor

An example method comprising requesting authorization to reprocess a replaceable supply component using first data stored in memory of the replaceable supply component and an interface, the first data including original manufacturing data for the replaceable supply component. The method further comprises, in response to the request, receiving second data using the interface, and appending the original manufacturing data stored in the memory with the second data to designate the replaceable supply component as reprocessed.

Appending data on a replaceable supply component

A logic circuitry package for a replaceable print apparatus component includes a logic circuit and an interface to communicate with a print apparatus logic circuit. The logic circuit is configured to include a plurality of personalities, each personality of the plurality of personalities including an ID and a cryptographic key. The logic circuit is further configured to start a cryptographic session with the print apparatus logic circuit using a selected personality of the plurality of personalities, and transmit a consumable level value to the print apparatus logic circuit in response to a request from the print apparatus logic circuit independent of which personality of the plurality of personalities is the selected personality.

Logic circuitry packages for replaceable print apparatus components

Growing community of inventors

Vancouver, WA, United States of America

Jesse Otto Sutherland, Iii