Ink jet printing
AssigneeHewlett-Packard Development Company, L.P.
InventorsLawrence H. White, Arun K. Agarwal, Ron Burns
Life of this patent
Estimating the term…
Abstract
Printheads and printers are described herein. In one example, a printhead includes a plurality of nozzles configured to eject ink drops of different sizes wherein a low drop weight (LDW) drop is ejected through a nozzle with a circular bore (CB), and a high drop weight (HDW) drop is ejected through a nozzle with a non-circular bore (NCB).
Claims14
A printhead comprising a plurality of nozzles to eject ink drops of different sizes, wherein the plurality of nozzles include:
- a low drop weight (LDW) nozzle to eject a LDW drop;
- and
- a high drop weight (HDW) nozzle to eject a HDW drop, wherein the HDW nozzle has a non-circular bore (NCB);
- wherein the HDW nozzle with the NCB is to form a main drop and a satellite drop, wherein the main drop is to be larger than the satellite drop;
- wherein the plurality of nozzles are arranged in two rows on opposite sides of an ink feed slot, wherein within each row the nozzles alternate between a circular bore (CB) and a NCB.
A printing system, comprising a plurality of printheads, each comprising a plurality of nozzles to eject ink drops of different sizes, wherein:
- a low drop weight (LDW) nozzle of each printhead ejects a LDW drop;
- a high drop weight (HDW) nozzle of each printhead ejects a HDW drop and has a non-circular bore (NCB);
- the HDW nozzle with the NCB is to form a main drop and a satellite drop, wherein the main drop is to be larger than the satellite drop;
- and
- the plurality of nozzles are arranged in two rows on opposite sides on an ink feed slot, wherein within each row the nozzles alternate between a circular bore (CB) and a NCB.
A fluid ejection device comprising:
- a plurality of high drop-weight (HDW) fluid ejection elements;
- a plurality of low drop weight (LDW) fluid ejection elements;
- and
- a plurality of non-circular bores (NCB) aligned with the plurality of HDW fluid ejection elements, wherein each NCB is to cause fluid ejected by the respective HDW fluid ejection element to form into a main droplet and a satellite droplet, wherein the main droplet is to be larger than the satellite droplet;
- wherein the plurality of NCB s and a plurality of circular bores (CBs) are arranged in two rows on opposite sides on an ink feed slot, wherein within each row the nozzles alternate between a CB and a NCB.
Dependencies are inferred from the claim text.