Printhead

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2006-05-30

2006-05-30

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S068000

Reexamination Certificate

active

07052122

ABSTRACT:
Methods and articles used to degass liquids in a drop ejection device are disclosed. For example, a drop ejection device having a flow path in which fluid is pressurized for ejecting a drop from a nozzle opening, and a deaerator including a fluid reservoir region, a vacuum region, and a partition between the fluid reservoir region and the vacuum region, the partition including a wetting layer and a non-wetting layer and one or more channels extending through the wetting and non-wetting layers, wherein the wetting layer is exposed to the fluid reservoir region.

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