Back to results
US 8,540,355 B2Granted
Fluid ejection device with circulation pump
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlexander Govyadinov, Andrew L. Van Brocklin
Life of this patent
Estimating the term…
Abstract
A fluid ejection assembly includes a fluid slot, a plurality of drop generators, and a fluid circulation pump to circulate fluid from the fluid slot through each drop generator individually and back into the fluid slot.
Claims11
A fluid ejection assembly comprising:
- a substrate;
- a fluid slot formed in the substrate;
- a nozzle plate;
- a chamber layer between the nozzle plate and the substrate;
- a fluid channel defined by the chamber layer that begins at a single inlet and ends at a plurality of outlets, the inlet and outlets in communication with the fluid slot;
- a plurality of drop generators corresponding with the plurality of outlets;
- and
- a fluid circulation pump formed on the substrate within the fluid channel to circulate fluid from the inlet and through each drop generator and corresponding outlet.
5 more elements
Dependencies are inferred from the claim text.