IP Library Granted Patent US 8,840,230
Granted Patent B2
US 8,840,230 · App. 13/488,011 · Granted Sep 23, 2014

Ink waste tray configured with one way filter

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Quick Facts
Patent No.
US 8,840,230
App. No.
13/488,011
Granted
Sep 23, 2014
Kind
B2
Abstract

A system for recycling waste phase change ink in a phase change ink imaging device includes a waste ink collector positioned within a phase change ink imaging device to collect waste phase change ink produced by a printhead in the phase change ink imaging device. The waste ink collector includes a heater for heating the waste phase change ink in the collector to at least a phase change ink melting temperature. A waste phase change ink conveyor is configured to convey melted waste phase change ink from the waste ink collector to an ink reservoir for the printhead.

Claims (24)

1. An ink reclamation receptacle comprising:

a volumetric container having at least one wall that forms a volume for ink collection and an opening;

a second wall that extends away from a first boundary that is co-terminus with the opening in the volumetric container to a second boundary that is separated from the opening, the second boundary having a width and a length that is larger than a width and a length of the first boundary at the opening;

a membrane positioned across the opening in the at least one wall, the membrane being hermetically sealed to the volumetric container at the boundary co-terminus with the opening and the second wall to enable the second wall and the membrane to form a volume outside the volumetric container that communicates directly with the volume in the volumetric container through an area of the membrane within the first boundary, the membrane being configured to enable ink passing through the membrane to establish a meniscus strength in pores of the membrane as gravity alone urges the ink in the volume outside of the volumetric container to enter the volume in the volumetric container through the membrane positioned across the opening, the membrane having a bubble point that prevents ink from exiting the volume in the volumetric container through the membrane when the volumetric container is oriented so the ink in the volume within the volumetric container contacts the membrane;

a port extending through the wall to enable ink to exit the volumetric container; and

a blocking member configured to stop ink from flowing into the volumetric container through the port to enable the membrane to stop ink egress from the volumetric container through the membrane.

2. The ink reclamation receptacle of claim 1 wherein the membrane has a plurality of pores having sizes in a range of 1 μm to 100 μm.

3. The ink reclamation receptacle of claim 1 wherein the blocking member is a pump.

4. The ink reclamation receptacle of claim 1 wherein the blocking member is a check valve.

5. The ink reclamation receptacle of claim 1 further comprising:

a heater positioned within the volumetric container to heat ink within the volumetric container to a predetermined temperature range.

6. An inkjet printer comprising:

an inkjet printing apparatus having a plurality of inkjet ejectors, the inkjet printing apparatus being configured to purge ink from the inkjet ejectors;

an ink reservoir configured to supply ink to the plurality of inkjet ejectors;

a volumetric container having at least one wall that forms a volume for ink collection and an opening;

a second wall that extends away from a first boundary that is co-terminus with the opening in the volumetric container to a second boundary that is separated from the opening, the second boundary having a width and a length that is larger than a width and a length of the first boundary at the opening;

a membrane positioned across the opening in the at least one wall, the membrane being hermetically sealed to the volumetric container at the first boundary co-terminus with the opening and the second wall to enable the membrane and the second wall to form a volume outside of the volumetric container that communicates directly with the volume in the volumetric container through an area of the membrane within the first boundary, the volume outside of the volumetric container being positioned proximate to the plurality of inkjet ejectors to collect ink purged from the inkjet ejectors onto a nozzle plate, the membrane being configured to enable ink passing through the membrane to establish a meniscus strength in pores of the membrane as ink held by the second wall in the volume outside of the volumetric container is urged by gravity alone through the membrane, the membrane having a bubble point that prevents ink from exiting the volume in the volumetric container through the membrane when the volumetric container is oriented so the ink in the volume within the volumetric container contacts the membrane;

a port extending through the wall to enable ink to exit the volumetric container, the port being in fluid communication with the ink reservoir; and

a blocking member configured to stop ink from flowing into the volumetric container through the port to enable the membrane to stop ink egress from the volumetric container through the membrane.

7. The inkjet printer of claim 6 wherein the membrane has a plurality of pores having sizes in a range of 1 μm to 100 μm.

8. The inkjet printer of claim 6 wherein the blocking member is a pump.

9. The inkjet printer of claim 6 wherein the blocking member is a check valve.

10. The inkjet printer of claim 6 further comprising:

a heater positioned within the volumetric container to heat ink within the volumetric container to a predetermined temperature range.

Assignments (10)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2025
From: XEROX CORPORATION
To: GENESEE VALLEY INNOVATIONS, LLC
Reel/Frame 073842/0479 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT RF 064760/0389 Recorded Feb 13, 2024
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: XEROX CORPORATION
Reel/Frame 068261/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
SECURITY INTEREST Recorded Jun 22, 2023
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 064760/0389 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 062740/0214 Recorded May 18, 2023
From: CITIBANK, N.A., AS AGENT
To: XEROX CORPORATION
Reel/Frame 063694/0122 →
SECURITY INTEREST Recorded Nov 10, 2022
From: XEROX CORPORATION
To: CITIBANK, N.A., AS AGENT
Reel/Frame 062740/0214 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 4, 2012
From: PLATT, DAVID P.; SNYDER, TREVOR J.; SLOTTO, STEVEN R.
To: XEROX CORPORATION
Reel/Frame 028313/0265 →