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Bubble removal for ink jet printing

  • US 8,690,302 B2
  • Filed: 12/06/2010
  • Issued: 04/08/2014
  • Est. Priority Date: 12/06/2010
  • Status: Active Grant
First Claim
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1. An ink jet print head subassembly, comprising:

  • one or more separator elements configured to separate bubbles of a vapor from ink, each separator element comprising wicking features having one or more of corners and/or angled surfaces with dimensions sufficient to allow capillary movement of the ink in the wicking features and to substantially exclude the bubbles of the vapor from the wicking features;

    one or more inlets configured to allow passage of the ink that includes the bubbles of the vapor into the separator element;

    at least one vapor outlet configured to allow the vapor that has been separated from the ink to exit from the separator element; and

    one or more ink outlets configured to allow the ink to exit from the separator element.

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