Continuous fluid jet ejector with anisotropically etched...

Details Continuous fluid jet ejector with anisotropically etched... Continuous fluid jet ejector with anisotropically etched...

Filed on

2005-09-07

Date issued

2010-06-08

Examiner

Feggins, K. (Department: 2861)

Patent Class

Incremental printing of symbolic information

SubClass

Ink jet

SubSubClass

Ejector mechanism

Type

Reexamination Certificate

Status

active

Patent number

07731341

Description

ABSTRACT:
A fluid ejection device, a method of cleaning the device, and a method of operating the device are provided. The device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate and has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall. The first wall and the second wall are positioned at an angle other than 90° relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber.

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patent: 2002/0075359 (2002-06-01), Wuu et al.
patent: 2004/0090483 (2004-05-01), Gue et al.
patent: 2006/0028511 (2006-02-01), Chwalek et al.

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