Hewlett-packard Development Company, L.p.

Elizabeth A Fellner

Alexey S Kabalnov

Manish Giri

Garrett E Clark

David William Jenkins

James A Feinn

Matthew David Giere

Arun K Agarwal

Satya Prakash

James Pingel

Jules G Moritz

Ozgur E Yildirim

Gilbert G Smith

Julie J Cox

Jeffrey S Hess

Kevin G Miller

Jaynie Schonbrod

Holli C Ogle

Glenn T Haddick

An ink composition comprising a solvent system, a pigment dispersed in the solvent system; and a surfactant present in an amount sufficient to impart to the ink composition a dynamic viscosity greater than 100 centipoise at a shear rate of 1 sand a dynamic viscosity from 1 to 10 centipoise at a shear rate of 10,000 s.

Inkjet ink and method of making the same

A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction. The fluid restriction has a fluid restriction parameter defined as (2*W+2*H)*L/(H*W), wherein W is a width of the fluid restriction, H is a height of the fluid restriction, and L is a length of the fluid restriction. As such, the fluid restriction parameter is in a range of 1.5 to 5.75.

Fluid ejection device

Growing community of inventors

San Diego, CA, United States of America

Elizabeth A Fellner