公开(公告)号：US20170087844A1

公开(公告)日：2017-03-30

申请号：US15128219

申请日：2014-04-11

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

Inventor： Nicholas Matthew Cooper McGuinness ,  Manish Giri ,  Chantelle Elizabeth Domingue ,  Melinda M. Valencia ,  Jeremy Sells

IPC: B41J2/14

CPC classification number: B41J2/14314 ,  B41J2/135 ,  B41J2/14 ,  B41J2/1404 ,  B41J2/14096 ,  B41J2/1433

Abstract: A printhead includes a plurality of firing chambers, a plurality of fluid ejectors, and at least one field generating member. Each one of the firing chambers includes a nozzle region to receive printing fluid. The printing fluid includes an ink vehicle having pigments disposed therein. At least one field generating member generates a non-uniform electric field to apply forces to maintain respective pigments in the ink vehicle of the printing fluid in the nozzle region.