公开(公告)号：WO2023287438A2

公开(公告)日：2023-01-19

申请号：PCT/US2021/042096

申请日：2021-07-16

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： WARD, Jefferson P ,  SUTHERLAND III, Jesse Otto ,  LE CHEVALLIER, Peter

IPC: G06F21/30 ,  B41J2/175 ,  G03G15/00 ,  G06F21/60 ,  G06F21/72

Abstract: 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.