公开(公告)号：US09987852B2

公开(公告)日：2018-06-05

申请号：US15110725

申请日：2014-01-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Aidan O'Reilly ,  Mark Walsh ,  Garry Rooney ,  Tommy O'Connor ,  John Oliver ,  Brendan Hall ,  Willie Sheehan ,  Stephen Byrne ,  Michael Dineen

IPC: B41J2/175 ,  B41J2/21

CPC classification number: B41J2/17553 ,  B41J2/17513 ,  B41J2/21

Abstract: In one example a replaceable tri-color ink cartridge housing includes three chambers for different colors ink. In a further example, a headland may have three parallel ink slots having a length of at least 14.4 millimeters.

公开(公告)号：US09815289B2

公开(公告)日：2017-11-14

申请号：US15498224

申请日：2017-04-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Erik D. Ness ,  Huston W. Rice ,  Brendan Hall

IPC: B41J2/175 ,  B41J2/195

CPC classification number: B41J2/17546 ,  B41J2/17503 ,  B41J2/17526 ,  B41J2/17553

Abstract: Encryption of fluid cartridges for use with imaging devices is disclosed herein. One disclosed apparatus includes a memory of a fluid cartridge comprising a plurality of sequential bits, where the plurality of sequential bits are written to the memory after the plurality of sequential bits are transformed based on scrambling bits of the plurality of sequential bits, and a memory interface of the fluid cartridge to enable access to the memory to authenticate the fluid cartridge.