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US 2017/0320328 A1Published application
Printhead device including shipping fluid
AssigneeHewlett-Packard Development Company, L.P.
InventorsCurtis Voss, Palitha Wickramanayake
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Abstract
A printhead device includes firing chambers, nozzles, and shipping fluid. The shipping fluid includes a shipping fluid density and a shipping fluid viscosity greater than a corresponding ink density and ink viscosity of an ink that will be ejected from the firing chambers and through the nozzles.
Claims15
A printhead device comprising:
- a plurality of firing chambers;
- a plurality of nozzles in fluid communication with the plurality of firing chambers, respectively;
- and
- a shipping fluid disposed within the plurality of firing chambers, the shipping fluid including a shipping fluid density and a shipping fluid viscosity greater than a corresponding ink density and ink viscosity of an ink that will be ejected from the firing chambers and through the nozzles.
1 more element
A method of fabricating a printhead device, the method comprising:
- forming a print bar including a main fluid channel and an ink port;
- forming a plurality of printheads including nozzles and firing chambers;
- coupling the printheads to the print bar;
- and
- filling the main fluid channel and the firing chambers with a shipping fluid including a shipping fluid density, a shipping fluid viscosity, and a shipping fluid surface tension greater than a corresponding ink density, ink viscosity, and ink surface tension of an ink that will be ejected from the firing chambers and through the nozzles.
2 more elements
Dependencies are inferred from the claim text.