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US 6,280,013 B1Granted
Heat exchanger for an inkjet printhead
AssigneeHewlett-Packard Company
InventorsJohn M. Wade, Kenneth J. Courian, James L. McCullough, Joe R. Pietrzyk, Marvin D. Patton
Life of this patent
Estimating the term…
Abstract
Disclosed is an inkjet printhead having a substrate that includes plurality of ink ejection elements formed thereon. The printhead also includes a heat exchanger in thermal contact with the substrate. The heat exchanger has a plurality of pathways for allowing a passage of ink through the heat exchanger.
Claims27
An inkjet printhead, comprising:
- a substrate having a plurality of ink ejection elements formed thereon;
- and
- a heat exchanger in thermal contact with the substrate, the heat exchanger having a plurality of pathways formed through the heat exchanger, wherein ink passes through the plurality of pathways and directly to the substrate.
An inkjet printhead, comprising:
- a substrate having plurality of ink ejection elements formed thereon;
- and
- a heat exchanger in thermal contact with the substrate, the heat exchanger being formed from a porous material for allowing ink to flow through the heat exchanger and then directly to the substrate.
An inkjet printing system, comprising:
- a printhead including:
- a substrate having plurality of drop ejection elements formed thereon;
- a heat exchanger in thermal contact with the substrate, the heat exchanger defining a plurality of pathways formed through the heat exchanger for allowing passage of ink through the pathways;
- a scanning carriage supporting the printhead over a media print zone;
- and
- a source of ink fluidically connected to the printhead.
3 more elements
A method for assembling an inkjet print cartridge, comprising:
- providing a substrate having first and second surfaces, the first surface having a plurality of ink ejection chambers formed thereon;
- providing a housing having a conduit;
- attaching a heat exchanger to the second surface of the substrate, wherein the heat exchanger has plural pathways formed through the heat exchanger, and wherein ink passes through the pathways and directly to the substrate;
- and
- affixing the substrate and the heat exchanger to the housing.
2 more elements
A method of printing comprising the steps of:
- providing a scanning carriage supporting an inkjet printhead, the printhead including a substrate in thermal contact with a heat exchanger, the substrate having a plurality of ink ejection chambers and the heat exchanger having a plurality of pathways formed through the heat exchanger for allowing passage of ink through the pathways and directly to the substrate;
- supplying ink to the plurality of pathways and allowing ink to flow through the heat exchanger and then directly in to the ink ejection chambers;
- and
- scanning the carriage across a media print zone while providing energization signals to the printhead so that the ink ejection chambers eject droplets of ink.
1 more element
Dependencies are inferred from the claim text.