Nozzle arrangements and supply channels

Patent metadata

Field	Value
Publication number	US-2020398563-A1
Application number	US-201816607204-A
Country	US
Kind code	A1
Filing date	Mar 12, 2018
Priority date	Mar 12, 2018
Publication date	Dec 24, 2020
Grant date	—

Abstract

Examples include a fluid ejection device. The fluid ejection device includes at least one fluid ejection die coupled to a support structure and having a die length and a die width. The at least one fluid ejection die may include a plurality of nozzles arranged along the die length and a die width. The plurality of nozzles is arranged such that at least one pair of neighboring nozzles are positioned at different die width positions along the width of the fluid ejection die. The at least one fluid ejection die further includes a plurality of ejection chambers including a respective ejection chamber fluidically coupled to each respective nozzle. The at least one fluid ejection die further includes an array of fluid feed holes. The array of fluid feed holes includes at least one fluid feed hole fluidically coupled to each respective ejection chamber.

First claim

1 . A fluid ejection device comprising:
a support structure having at least one fluid supply channel formed therethrough; and at least one fluid ejection die coupled to the support structure, each respective fluid ejection die of the at least one fluid ejection die having a die length and a die width, each respective fluid ejection die comprising:
a plurality of nozzles arranged along the die length and the die width, the plurality of nozzles arranged such that at least one respective pair of neighboring nozzles are positioned at different die width positions along the width of the fluid ejection die;
a plurality of fluid ejection chambers including a respective ejection chamber fluidically coupled each respective nozzle of the plurality of nozzles; and
an array of fluid feed holes including at least one respective fluid feed hole fluidically coupled to each respective ejection chamber and fluidically coupled to the at least one fluid supply channel formed through the support structure.

2 . The fluid ejection device of claim 1 , wherein the at least one fluid ejection die comprises a plurality of fluid ejection dies arranged along a length of the support structure in a generally end-to-end staggered manner.

3 . The fluid ejection device of claim 2 , wherein the at least one fluid supply channel comprises at least two fluid supply channels formed therethrough, the plurality of fluid ejection dies comprises a first set of fluid ejection dies arranged end-to-end and fluidically coupled to a first fluid supply channel of the at least two fluid supply channels, and the plurality of fluid ejection dies comprises a second set of fluid ejection dies arranged end-to-end and fluidically coupled to a second fluid supply channel of the at least two fluid supply channels.

4 . The fluid ejection device of claim 1 , wherein nozzles of the plurality of nozzles of the at least one fluid ejection die are arranged in at least four nozzle columns that are arranged in a staggered manner, and each respective nozzle column of the at least four nozzle columns comprises approximately 50 to approximately 200 nozzles.

5 . The fluid ejection device of claim 1 , wherein nozzles of the plurality of nozzles of the at least one fluid ejection die are arranged in at least four nozzle columns that are arranged in a staggered manner, and a distance between each nozzle of a respective nozzle column is within a range of approximately 100 μm to approximately 400 μm.

6 . The fluid ejection device of claim 1 , wherein nozzles of the plurality of nozzles of the at least one fluid ejection die are arranged in at least eight nozzle columns that are arranged in a staggered manner.

7 . The fluid ejection device of claim 1 , wherein nozzles of the plurality of nozzles of the at least one fluid ejection die are arranged in at least four nozzle columns that are arranged in a staggered manner, and a distance between each nozzle column is within a range of approximately 100 μm to approximately 400 μm.

8 . The fluid ejection device of claim 1 , wherein the at least one respective fluid feed hole fluidically coupled to each respective ejection chamber includes a first respective fluid feed hole fluidically coupled to each respective ejection chamber, and the at least one respective fluid feed hole fluidically coupled to each respective ejection chamber includes a second respective fluid feed hole coupled to each respective ejection chamber, and each respective fluid ejection die of the at least one fluid ejection die further comprises:
an array of ribs in the respective fluid ejection die that define an array of fluid circulation channels, the array of fluid circulation channels fluidically coupled to the at least one fluid supply channel formed through the support structure, wherein the first fluid feed hole is fluidically coupled to a respective first fluid circulation channel, and the second fluid feed hole is fluidically coupled to a respective second fluid circulation channel.

9 . The fluid ejection device of claim 1 , wherein the plurality of nozzles of the at least one fluid ejection die are a first plurality of nozzles, the first plurality of nozzles are fluidically coupled together, and the at least one fluid ejection die further comprises:
a second plurality of nozzles arranged along the die length and the die width, the second plurality of nozzles arranged such that at least one respective pair of neighboring nozzles are positioned at different die width positions along the width of the fluid ejection die, the second plurality of nozzles fluidically coupled together.

10 . A fluid ejection device comprising:
a support structure having at least one fluid supply channel formed therethrough; and a plurality of fluid ejection dies, each respective fluid ejection die of the plurality comprising:
a plurality of nozzles arranged in at least four nozzle columns along the die length and the die width in a staggered manner, nozzles of the plurality of nozzles arranged such each respective nozzle of a respective set of four neighboring nozzles of the plurality of nozzles is arranged in a different respective nozzle column of the at least four nozzle columns;
an array of ribs that define an array of fluid circulation channels in the respective fluid ejection die, the array of fluid circulation channels fluidically coupled to the at least one fluid supply channel formed through the support structure; and
an array of fluid feed holes including a respective first fluid feed hole and a respective second fluid feed hole fluidically coupled to each respective nozzle, each respective first fluid feed hole fluidically coupled to a respective first fluid circulation channel of the array of fluid circulation channels, and each respective second fluid feed hole fluidically coupled to a respective second fluid circulation channel of the array of fluid circulation channels.

11 . The fluid ejection device of claim 10 , wherein each respective fluid ejection die of the plurality further comprises:
an interposer forming a surface of the array of fluid circulation channels, the interposer defining a die fluid input fluidly through which the array of fluid circulation channels and the at least one fluid supply channel formed through the support structure are fluidically coupled, and the interposer further defining a die fluid output through which the array of fluid circulation channels and the at least one fluid supply channel formed through the support structure are fluidically coupled.

12 . The fluid ejection device of claim 10 , wherein the respective set of four neighboring nozzles are aligned along a respective diagonal with respect to the die length and the die width, and the array of ribs are arranged parallel to the respective diagonal.

13 . The fluid ejection device of claim 10 , wherein the plurality of fluid ejection dies are arranged generally end-to-end in a staggered manner along a length of the support structure in a first set of fluid ejection dies and a second set of fluid ejection dies, the at least one fluid supply channel formed through the support structure includes a first fluid supply channel formed through the support structure and a second fluid supply channel formed through the support structure, the first set of fluid ejection dies are fluidically coupled to the first fluid supply channel, and the second set of fluid ejection dies are fluidically coupled to the second fluid supply channel.

14 . A fluid ejection device comprising:
a support structure having a first fluid supply channel and a second fluid supply channel formed therethrough; and at least one fluid ej

Assignees

• Hewlett Packard Development Co

Inventors

• Cook Galen
• Clark Garrett E
• Cumbie Michael W
• Przybyla James R
• Seaver Richard
• Derryberry Frank D
• Choy Si-Lam J

Classifications

• B41J2/145 Primary

  Arrangement thereof · CPC title

• B41J2202/20

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• B41J2002/14459

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• B41J2/14145

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• B41J2202/12

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