Printhead including acoustic dampening structure
AssigneeEastman Kodak Company
InventorsYonglin Xie, Qing Yang, John A. Lebens
Life of this patent
Estimating the term…
Abstract
A printhead includes a nozzle plate including a plurality of nozzles and a plurality of liquid chambers. Each liquid chamber is in fluid communication with a respective one of the plurality of nozzles. An acoustic dampening structure includes a plurality of sets of air pockets and liquid flow restrictors. Each liquid chamber is in fluid communication with one of the sets of air pockets and liquid flow restrictors. A common liquid supply manifold is in fluid communication with each liquid chamber through the liquid flow restrictor associated with the liquid chamber.
Claims15
A printhead comprising:
- a nozzle plate including a plurality of nozzles;
- a plurality of liquid chambers, each liquid chamber being in fluid communication with a respective one of the plurality of nozzles;
- an acoustic dampening structure including a plurality of sets of air pockets formed in recesses in walls of the liquid chamber and liquid flow restrictors, each liquid chamber being in fluid communication with one of the sets of air pockets formed in the recesses in the walls of the liquid chamber and liquid flow restrictors, wherein each set of the air pockets in the recesses are in fluid communication with the associated liquid chamber downstream relative to the liquid flow restrictor;
- and
- a common liquid supply manifold in fluid communication with each liquid chamber through the liquid flow restrictor associated with the liquid chamber.
A printhead comprising:
- a nozzle plate including a plurality of nozzles;
- a plurality of liquid chambers, each liquid chamber being in fluid communication with a respective one of the plurality of nozzles;
- an acoustic dampening structure including a plurality of sets of air pockets formed in recesses in walls of the liquid chamber and liquid flow restrictors, each liquid chamber being in fluid communication with one of the sets of air pockets formed in the recesses in the walls of the liquid chamber and liquid flow restrictors;
- and
- a common liquid supply manifold in fluid communication with each liquid chamber through the liquid flow restrictor associated with the liquid chamber, wherein each air pocket extends into a cavity formed in a portion of a wall of the liquid chamber, the cavity being in fluid communication with the liquid chamber via the recess.
Dependencies are inferred from the claim text.