Inkjet printhead with inlet priming feature

Details Inkjet printhead with inlet priming feature Inkjet printhead with inlet priming feature

2005-10-11

2008-12-16

Matthew, Luu (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

07465041

ABSTRACT:
An inkjet printhead with an array of ink chambers, each having a nozzle and an actuator for ejecting ink through the nozzle; a plurality of ink inlets in fluid communication with the ink chambers; and, at least one priming feature extending through each of the ink inlets; such that, the surface tension of an ink meniscus at the ink inlet acts to draw the ink out of the inlet and partially along the flow path toward the ink chambers.By introducing a priming feature into the plane of the inlet aperture, the surface tension in the ink meniscus can be redirected to pull the ink along the intend flow path rather than push it back into the inlet.

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