| US 7,517,056 B2 | ||
| Fluid ejection device | ||
| Elizabeth A. Fellner, San Diego, Calif. (US); James Pingel, San Diego, Calif. (US); Matthew David Giere, San Diego, Calif. (US); Satya Prakash, San Diego, Calif. (US); David W Jenkins, San Diego, Calif. (US); James A Feinn, San Diego, Calif. (US); Arun K Agarwal, Corvallis, Oreg. (US); Julie J Cox, Corvallis, Oreg. (US); Jules G Moritz, Corvallis, Oreg. (US); and Ozgur Yildirim, Corvallis, Oreg. (US) | ||
| Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
| Filed on Feb. 13, 2006, as Appl. No. 11/352,678. | ||
| Application 11/352678 is a continuation in part of application No. 11/140802, filed on May 31, 2005, granted, now 7,431,434. | ||
| Prior Publication US 2006/0268071 A1, Nov. 30, 2006 | ||
| Int. Cl. B41J 2/05 (2006.01) | ||
| U.S. Cl. 347—56 [347/65] | 20 Claims |
| 1. A fluid ejection device, comprising:
a fluid chamber;
a fluid restriction communicated with the fluid chamber;
a fluid channel communicated with the fluid restriction; and
a fluid feed slot communicated with the fluid channel,
wherein a distance from an edge of the fluid feed slot to a center of the fluid chamber is in a range of approximately 45
microns to approximately 58 microns,
wherein 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, and wherein the fluid
restriction parameter is in a range of 1.5 to 5.75.
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