Nozzle arrangements and feed holes

Patent metadata

Field	Value
Publication number	US-11247470-B2
Application number	US-201816608271-A
Country	US
Kind code	B2
Filing date	Mar 12, 2018
Priority date	Mar 12, 2018
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

Examples include a fluid ejection die having a die length and a die width. The 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 example fluid ejection die further includes a plurality of ejection chambers including a respective ejection chamber fluidically coupled to each respective nozzle. The fluid ejection die further includes an array of fluid feed holes. The array of fluid feed holes includes a first respective fluid feed hole fluidically coupled to each respective ejection chamber, and the array of fluid feed holes includes a second respective fluid feed hole fluidically coupled to each respective ejection chamber.

First claim

The invention claimed is:

1. A fluid ejection die having a die length and a die width, the 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 die width of the fluid ejection die, wherein the plurality of nozzles comprise multiple columns of nozzles, and wherein a distance between sequential nozzles of a first column of the multiple columns is within a range from 100 micrometers (μm) to 400 μm;
a plurality of ejection chambers including a respective ejection chamber fluidically coupled to each respective nozzle of the plurality of nozzles; and
an array of fluid feed holes including a respective first fluid feed hole fluidically coupled to the respective ejection chamber and a respective second fluid feed hole fluidically coupled to the respective ejection chamber.

2. The fluid ejection die of claim 1 , wherein the multiple columns of nozzles are fluidically coupled therebetween.

3. The fluid ejection die of claim 1 , wherein the plurality of nozzles are arranged in at least four columns of nozzles, and each respective column of nozzles of the at least four columns of nozzles comprises 50 to 200 nozzles.

4. The fluid ejection die of claim 1 , further comprising:
an array of ribs defining an array of fluid circulation channels,
wherein the respective first fluid feed hole is fluidically coupled to a respective first fluid circulation channel of the array of fluid circulation channels, and the respective second fluid feed hole is fluidically coupled to a respective second fluid circulation channel of the array of fluid circulation channels.

5. The fluid ejection die of claim 4 , further comprising:
an interposer forming a surface of the array of fluid circulation channels, the interposer defining a die fluid input fluidically coupled to each respective fluid circulation channel of the array of fluid circulation channels, and the interposer further defining a die fluid output fluidically coupled to each respective fluid circulation channel.

6. The fluid ejection die of claim 5 , wherein the plurality of nozzles are arranged in at least four columns of nozzles.

7. The fluid ejection die of claim 6 , wherein the plurality of nozzles are arranged in sets of neighboring nozzles that are diagonally arranged with respect to the die length and the die width, and the ribs of the array of ribs are aligned with the sets of neighboring nozzles that are diagonally arranged.

8. The fluid ejection die of claim 1 , wherein a distance between sequential columns of nozzles of a second column of the multiple columns of nozzles is in the range from 100 μm to 400 μm.

9. A fluid ejection die comprising:
a plurality of nozzles arranged in nozzle columns, the plurality of nozzles spaced apart along a length of the fluid ejection die and a width of the fluid ejection die, the plurality of nozzles further arranged such that at least some neighboring nozzle pairs of the plurality of nozzles are arranged in different respective nozzle columns, wherein a distance between sequential nozzles of a first nozzle column of the nozzle columns is within a range from 100 micrometers (μm) to 400 μm;
a plurality of fluid ejection chambers, each respective fluid ejection chamber of the plurality of fluid ejection chambers arranged proximate and fluidically coupled to a respective nozzle of the plurality of nozzles; and
an array of ribs in the fluid ejection die that define an array of fluid circulation channels, the array of ribs arranged such that each respective fluid ejection chamber and respective nozzle are positioned over a respective rib of the array of ribs.

10. The fluid ejection die of claim 9 , further comprising:
an array of fluid feed holes, the respective fluid ejection chamber fluidically coupled to a respective first fluid feed hole of the array of fluid feed holes through which fluid is input to the respective fluid ejection chamber, the respective first fluid feed hole fluidically coupled to a respective first fluid circulation channel of the array of fluid circulation channels, and the respective fluid ejection chamber fluidically coupled to a respective second fluid feed hole of the array of fluid feed holes through which fluid is output from the respective fluid ejection chamber, and the 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 die of claim 9 , wherein a distance between sequential nozzles of a second nozzle column of the nozzle columns is within the range from 100 μm to 400 μm.

12. The fluid ejection die of claim 9 , wherein the nozzle columns comprise a first set of nozzle columns and a second set of nozzle columns, the fluid ejection die further comprising:
a first interposer disposed proximate a first set of ribs of the array of ribs and forming a respective surface of a first set of fluid circulation channels of the array of fluid circulation channels; and
a second interposer disposed proximate a second set of ribs of the array of ribs and forming a respective surface of a second set of fluid circulation channels of the array of fluid circulation channels.

13. The fluid ejection die of claim 9 , wherein the plurality of nozzles are arranged in respective sets of neighboring nozzles that are diagonally arranged with respect to the length of the fluid ejection die and the width of the fluid ejection die.

14. The fluid ejection die of claim 13 , wherein the ribs of the array of ribs are aligned with the respective sets of neighboring nozzles that are diagonally arranged.

15. The fluid ejection die of claim 9 , wherein a distance between sequential nozzle columns of a second nozzle column of the nozzle columns is in the range from 100 μm to 400 μm.

16. A fluid ejection die comprising:
a plurality of nozzles arranged in a set of nozzle columns, the plurality of nozzles arranged such that neighboring nozzles of the plurality of nozzles are arranged in different respective nozzle columns of the set of nozzle columns, wherein a distance between sequential nozzles of a first nozzle column of the set of nozzle columns is within a range from 100 micrometers (μm) to 400 μm;
a plurality of fluid ejection chambers, each respective fluid ejection chamber of the plurality of fluid ejection chambers arranged proximate and fluidically coupled to a respective nozzle of the plurality of nozzles;
an array of ribs in the fluid ejection die that define an array of fluid circulation channels; and
an interposer disposed proximate the array of ribs and forming a surface of the array of fluid circulation channels; and
an array of fluid feed holes, wherein the respective fluid ejection chamber is fluidically coupled to a respective first fluid circulation channel via a respective first fluid feed hole of the array of fluid feed holes, and the respective fluid ejection chamber is fluidically coupled to a respective second fluid circulation channel via a respective second fluid feed hole of the array of fluid feed holes.

17. The fluid ejection die of claim 16 , wherein the plurality of nozzles are a first plurality of nozzles arranged in a first set of nozzle columns, the plurality of fluid ejection chambers are a first plurality of fluid ejection chambers, the array of ribs are a first array of ribs that define a first array of fluid circulation channels, the interposer is a first inte

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

• B41J2/175 Primary

  Ink supply systems {; Circuit parts therefor} · CPC title

• B41J2/145 Primary

  Arrangement thereof · CPC title

• B41J2202/12

  with ink circulating through the whole print head · CPC title

• B41J2002/14459

  Matrix arrangement of the pressure chambers · CPC title

• B41J2002/14467

  Multiple feed channels per ink chamber · CPC title