Fluid ejection device
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlexander Govyadinov, Tsuyoshi Yamashita, Erik D. Torniainen
Life of this patent
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Abstract
A fluid ejection device includes a fluid slot, a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element, a second fluid ejection chamber including a second drop ejecting element, and a fluid circulation path including a first portion communicated with the fluid slot and the second fluid ejection chamber, and a second portion communicated with the first fluid ejection chamber and the second fluid ejection chamber, with the fluid circulation path including a fluid circulating element within the first portion.
Claims20
A fluid ejection device, comprising:
- a fluid slot;
- a fluid circulation path having a first end in fluid communication with the fluid slot, and a second end in fluid communication with the fluid slot;
- a plurality of fluid ejection chambers arranged along the fluid circulation path and comprising respective drop ejecting elements;
- and
- a fluid circulating element in the fluid circulation path to induce a flow of circulating fluid in the fluid circulation path, wherein the fluid circulating element and the plurality of fluid ejection chambers are arranged in series in the fluid circulation path between the first and second ends of the fluid circulation path.
A fluid ejection device, comprising:
- a fluid slot;
- a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element;
- a first orifice through which a fluid drop is ejected in response to activation of the first drop ejecting element;
- a second fluid ejection chamber including a second drop ejecting element;
- a second orifice through which a fluid drop is ejected in response to activation of the second drop ejecting element, wherein the second orifice has a same size as the first orifice;
- and
- a fluid circulation path having a first end communicated with the fluid slot, and a second end communicated with the fluid slot,
- the fluid circulation path including a fluid circulating element to induce a flow of circulating fluid in the fluid circulation path, wherein the fluid circulating element, the first fluid ejection chamber, and the second fluid ejection chamber are arranged in series in the fluid circulation path between the first and second ends of the fluid circulation path.
A method of forming a fluid ejection device, comprising:
- defining a plurality of fluid ejection chambers having respective drop ejecting elements;
- defining a fluid circulation path having a fluid circulating element;
- communicating a first end and a second end of the fluid circulation path with a fluid slot;
- and
- arranging the fluid circulating element and the plurality of fluid ejection chambers in series in the fluid circulation path between the first and second ends of the fluid circulation path.
Dependencies are inferred from the claim text.