Print fluid recirculation
AssigneeHewlett-Packard Development Company, L.P.
InventorsDavid L. SMITH, Eric BEYER
Life of this patent
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Abstract
In one example of the disclosure, a system for print fluid recirculation includes a supply manifold, a recirculation manifold, a printbar, and a recirculation pathway. The printbar includes a plurality of printheads that are in fluid communication with the supply manifold, and the recirculation manifold. The recirculation pathway is in fluid connection with the supply manifold and the recirculation manifold, and is to enable recirculation of print fluid at a controlled flow through the plurality of printheads.
Claims15
A print fluid recirculation system, comprising:
- a supply manifold;
- a recirculation manifold;
- a printbar including a plurality of printheads that are in fluid communication with one another, with the supply manifold, and with the recirculation manifold;
- and
- a recirculation pathway in fluid connection with the supply manifold and the recirculation manifold, the recirculation pathway to enable recirculation of print fluid at a controlled flow through the plurality of printheads.
A print fluid recirculation method, comprising:
- controlling application of a target negative pressure to a recirculation manifold, thereby causing print fluid to move successively through a supply manifold, a plurality of printheads, a recirculation manifold, and a recirculation pathway.
A print fluid recirculation system, comprising:
- a first supply manifold;
- a first recirculation manifold;
- a first plurality of printheads in fluid communication with one another, with the first supply manifold, and with the first recirculation manifold;
- a second supply manifold;
- a second recirculation manifold;
- a second plurality of printheads in fluid communication with one another, with the second supply manifold, and with the second recirculation manifold;
- a supply manifolds bridge that fluidly connects the first and the second supply manifolds;
- a recirculation pathway in fluid connection with the first and second supply manifolds and to the first and second recirculation manifolds, the recirculation pathway including a reservoir and at least one vacuum source;
- and
- a control engine to direct the at least one vacuum source to control application of a negative pressure to the first recirculation manifold and the second recirculation manifold, and thereby enable recirculation of print fluid at a controlled flow through the first and second pluralities of printheads.
Dependencies are inferred from the claim text.