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.

Title
Fluid ejection device
Application Number
11/352678
Publication Number
20060268071
Application Date
February 13, 2006
Publication Date
November 30, 2006
Inventor
Ozgur Yildirim
Corvallis
OR, US
Jules G Moritz
Corvallis
OR, US
Julie J Cox
Corvallis
OR, US
Arun Agarwal
Corvallis
OR, US
James A Feinn
San Diego
CA, US
David W Jenkins
San Diego
CA, US
Satya Prakash
San Diego
CA, US
Matthew David Giere
San Diego
CA, US
James Pingel
San Diego
CA, US
Elizabeth A Fellner
San Diego
CA, US
Agent
Hewlett Packard Company
CO, US
IPC
B41J 02/05
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