Print liquid supply units

Patent metadata

Field	Value
Publication number	US-2021237461-A1
Application number	US-201916768598-A
Country	US
Kind code	A1
Filing date	Sep 10, 2019
Priority date	Dec 3, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

Examples of a print liquid supply unit are described herein. In some examples, the print liquid supply unit includes a first housing component including an alignment feature. In some examples, the print liquid supply unit includes sensor circuitry. In some examples, the print liquid supply unit includes a sensor support secured to the first housing component with the alignment feature.

First claim

1 . A print liquid supply unit, comprising:
a first housing component comprising an alignment feature; sensor circuitry; and a sensor support secured to the first housing component with the alignment feature.

2 . The print liquid supply unit of claim 1 , further comprising a first conductor and a second conductor, wherein the first conductor is a serial data line and the second conductor is a clock line.

3 . The print liquid supply unit of claim 2 , further comprising a third conductor and a fourth conductor, wherein the third conductor is a power line and the fourth conductor is a ground line.

4 . The print liquid supply unit of claim 1 , wherein the alignment feature comprises a snap-fit feature to secure the sensor support to the first housing component.

5 . The print liquid supply unit of claim 1 , further comprising a second housing component comprising an interference component that maintains the sensor support on the alignment feature.

6 . The print liquid supply unit of claim 1 , wherein the alignment feature is situated through a slot in the sensor support.

7 . The print liquid supply unit of claim 1 , wherein the sensor circuitry comprises a print liquid level sensor and a strain sensor.

8 . The print liquid supply unit of claim 1 , further comprising a front end with at least one print liquid interface, a bottom, and a top, wherein the print liquid supply unit comprises a recess in and between the front end and the top, wherein an electrical connection pad is situated in the recess and coupled to the sensor circuitry.

9 . The print liquid supply unit of claim 8 , wherein the electrical connection pad and a conductor are supported by the first housing component.

10 . The print liquid supply unit of claim 9 , wherein the sensor circuitry is connected to the conductor.

11 . The print liquid supply unit of claim 1 , further comprising a print liquid inlet and a gas inlet of the print liquid supply unit.

12 . A print liquid container, comprising:
a sensor support; a container property sensor attached to the sensor support; and a fastener to fasten the sensor support to a lid of the print liquid container.

13 . The print liquid container of claim 12 , wherein the fastener is a retainer.

14 . The print liquid container of claim 12 , wherein the fastener is welded to the lid.

15 . The print liquid container of claim 12 , wherein the fastener is a screw.

16 . The print liquid container of claim 12 , wherein the fastener is an adhesive.

17 . The print liquid container of claim 12 , wherein the fastener is a pressure sensitive adhesive.

18 . The print liquid container of claim 12 , wherein the fastener is cured with heat or light.

19 . An ink supply unit, comprising:
a carrier; a digital ink level sensor supported by the carrier; and a lid, wherein the carrier is welded to the lid.

20 . The ink supply unit of claim 19 , wherein the carrier is welded to the lid with laser welding.

21 . The ink supply unit of claim 19 , wherein the lid comprises a laser transmissive component and a laser absorbing component.

22 . The ink supply unit of claim 20 , wherein the carrier is welded to the lid with ultrasonic welding or vibration welding.

Assignees

• Hewlett Packard Development Co

Inventors

• Studer Anthony Donald
• Olsen David
• Weaver Quinton Buford

Classifications

• G01F25/20

  of apparatus for measuring liquid level · CPC title

• B41J2/17526 Primary

  Electrical contacts to the cartridge · CPC title

• G01L23/08

  operated electrically {(G01L23/22 takes precedence)} · CPC title

• G06F21/74

  operating in dual or compartmented mode, i.e. at least one secure mode · CPC title

• B41J2/17513

  Inner structure · CPC title