Removable maintenance fluid holder

Patent metadata

Field	Value
Publication number	US-11860180-B2
Application number	US-202016786142-A
Country	US
Kind code	B2
Filing date	Feb 10, 2020
Priority date	Feb 10, 2020
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A removable maintenance fluid holder for a digital dispense system, a digital dispense system containing the removable maintenance fluid holder, and a method of maintaining a fluid droplet dispense cartridge. The removable maintenance fluid holder includes a housing having a handle end and a fluid receptacle end distal from the handle end. The fluid receptable end includes a fluid receptacle for holding fluid dispensed from a fluid droplet ejection head of a fluid droplet cartridge in the digital dispense system. The removable maintenance fluid holder is configured to be inserted and removed from the digital dispense system on a periodic basis.

First claim

What is claimed is:

1. A method for maintaining a fluid droplet ejection cartridge in a digital fluid dispense system, the method comprising:
providing a housing unit and a fluid droplet ejection cartridge disposed in the housing unit, the fluid droplet ejection cartridge comprising one or more fluids and being disposed on a fluid cartridge translation mechanism for moving the fluid droplet ejection cartridge back and forth in an X-direction within the housing unit; a substrate holder for holding the substrate below the fluid droplet ejection cartridge during fluid dispensing of the one or more fluids onto the substrate; and a maintenance station disposed in the housing unit remote from the substrate holder having a removable fluid receptacle having two or more discrete fluid containing segments thereon configured to prevent fluids from mixing together in the fluid receptacle;
periodically moving the fluid droplet ejection cartridge to the maintenance station; and
(i) ejecting fluid from the fluid droplet ejection cartridge for a predetermined period of time into a first segment of the fluid receptacle until the first segment is full, (ii) then indexing the fluid droplet ejection cartridge to a next segment of the two or more segments of the fluid receptacle and ejecting fluid into the next segment until the next segment is full, and (iii) repeating step (ii) until each of the two or more segments of the fluid receptacle are full, then (iv) removing the fluid receptacle from the housing unit, and (v) disposing of the fluid receptacle.

2. The method of claim 1 , wherein the fluid receptacle has a handle and is configured to be inserted and removed through an opening in the housing unit.

3. The method of claim 1 , wherein the fluid receptacle comprises a removable absorbent pad disposed therein.

4. A method for maintaining a fluid droplet ejection cartridge in a digital fluid dispense system, the method comprising:
providing a housing unit and a fluid droplet ejection cartridge disposed in the housing unit, the fluid droplet ejection cartridge containing two or more fluids and being disposed on a fluid cartridge translation mechanism for moving the fluid droplet ejection cartridge back and forth in an X-direction within the housing unit; a substrate holder for holding a substrate below the fluid droplet ejection cartridge during fluid dispensing of the one or more fluids onto the substrate; and a maintenance station disposed in the housing unit remote from the substrate holder and having a removable fluid receptacle, wherein the fluid receptacle is divided into two or more segments with each segment corresponding to one of the two or more fluids of the fluid droplet ejection cartridge;
periodically moving the fluid droplet ejection cartridge to the maintenance station; and
(i) ejecting a first one of the two or more fluids from the fluid droplet ejection cartridge into a first one of the two or more segments for a predetermined period of time,
(ii) indexing the fluid droplet ejection cartridge to a next segment of the fluid receptacle and ejecting a second of the two or more fluids from the fluid droplet ejection cartridge into a second one of the two or more segments for a predetermined period of time, and
(iii) repeating step (ii) until each of the two or more segments are full.

5. The method of claim 4 , wherein the fluid receptacle has a handle and is configured to be inserted and removed through an opening in the housing unit.

6. The method of claim 5 , wherein the fluid receptacle comprises a removable absorbent pad disposed therein.

7. The method of claim 6 wherein the removable absorbent pad is disposable.

8. The method of claim 6 , wherein the removable absorbent pad is made of a material compatible with the fluid droplet ejection cartridge.

9. The method of claim 5 , wherein the fluid receptacle is configured to be inserted and removed through a front opening in the housing unit.

Assignees

• Funai Electric Co

Inventors

• Deboard Bruce A
• Jones Brian T
• Marra Iii Michael A
• Norasak Sam

Classifications

• G01N35/1004 Primary

  Cleaning sample transfer devices · CPC title

• G01N35/1002

  Reagent dispensers · CPC title

• G01N35/1083

  with one horizontal degree of freedom · CPC title

• B41J2/01 Primary

  Ink jet · CPC title

• B01L3/0268 Primary

  using pulse dispensing or spraying, eg. inkjet type, piezo actuated ejection of droplets from capillaries · CPC title