Internal vent channel in ejection head assemblies and...

Details Internal vent channel in ejection head assemblies and... Internal vent channel in ejection head assemblies and...

2006-03-01

2009-10-13

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07600850

ABSTRACT:
Fluid ejection head assemblies, fluid ejection devices, and methods for improving fluid sealing of fluid ejection head assemblies. One such fluid ejection head assembly includes a substrate cavity and a substantially planar surface surrounding the substrate cavity. The substantially planar surface contains at least one external vent, at least one internal vent channel, and a plurality of vents in fluid flow communication with the substrate cavity and providing fluid flow communication between the internal vent channel and the external vent. The plurality of vents, the at least one external vent and the at least one internal vent channel are disposed in fluid flow communication with an environment external to the substrate cavity for flow of a gas associated with an adhesive at least partially disposed in the substrate cavity, to the environment during the curing of the adhesive.

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