Non-leaching cooler belt

Patent metadata

Field	Value
Publication number	US-11724531-B2
Application number	US-202117352927-A
Country	US
Kind code	B2
Filing date	Jun 21, 2021
Priority date	Jun 21, 2021
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

Disclosed herein is a substrate cooling unit for use with a duplex aqueous ink jet image forming device. The substrate cooling unit includes a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between a first cooling roll and the first transport belt. The substrate cooling unit includes a second cooling roll positioned downstream of the first cooling roll in a process direction and a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt. The second transport belt includes a bottom layer of woven or non-woven fibers and a top rubber layer.

First claim

What is claimed is:

1. A substrate cooling unit for use with a duplex aqueous ink jet image forming device, comprising:
a first cooling roll;
a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between the first cooling roll and the first transport belt with a first surface of the individual sheets of image receiving media facing the first cooling roll;
a second cooling roll positioned downstream of the first cooling roll in a process direction;
a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt with a second surface of the individual sheets of the image receiving media facing the second cooling roll, wherein the first and second transport belts comprise:
a bottom layer of woven or non-woven fibers;
an optional intermediate adhesive layer; and
a top rubber layer, wherein the second transport belt is operatively connected to a transfix belt actuator to move the top rubber layer of the second transport belt into and out of engagement with the individual sheets of image receiving media, and a rubber of the top rubber layer is selected from the group consisting of: nitrile butadiene rubber (NBR), ethylene propylene diene monomer rubber (EPDM) and fluoro elastomer; and

an invertor; and wherein
no unreacted contaminants leach from the first transport belt or the second transport belt.

2. The substrate cooling unit of claim 1 , wherein the top rubber layer comprises a thickness of from about 100 microns to about 2000 microns.

3. The substrate cooling unit of claim 1 , wherein the top rubber layer includes fillers selected from the group consisting of: carbon black, silica, titania and clay.

4. The substrate cooling unit of claim 1 , wherein the optional adhesive layer comprises a thickness of from about 10 microns to about 500 microns.

5. The substrate cooling unit of claim 1 , wherein the bottom layer comprises a thickness of from about 50 microns to about 1000 microns.

6. A duplex printing system comprising:
an image receiving member;
an actuator operatively connected to the image receiving member to rotate the image receiving member;
a marking unit including at least one printhead, the marking unit being configured to eject aqueous ink drops onto the image receiving member;
a first cooling roll;
a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between the first cooling roll and the first transport belt with a first surface of the individual sheets of image receiving media facing the first cooling roll;
a second cooling roll positioned downstream of the first cooling roll in a process direction;
a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt with a second surface of the individual sheets of the image receiving media facing the second cooling roll wherein the first and second transport belts comprise:
a bottom layer of woven or non-woven fibers;
an optional intermediate adhesive layer; and
a top rubber layer, wherein the second transport belt is operatively connected to a transfix belt actuator to move the top rubber layer of the second transport belt into and out of engagement with the individual sheets of image receiving media, and a rubber of the top rubber layer is selected from the group consisting of: nitrile butadiene rubber (NBR), ethylene propylene diene monomer rubber (EPDM) and fluoro elastomer; and

an invertor; and wherein
no unreacted contaminants leach from the first transport belt or the second transport belt.

7. The duplex printing system of claim 6 , wherein the top layer comprises a thickness of from about 100 microns to about 2000 microns.

8. The duplex printing system of claim 6 , wherein the top rubber layer includes fillers selected from the group consisting of: carbon black, silica, titania and clay.

9. The duplex printing system of claim 6 , wherein the optional adhesive layer comprises a thickness of from about 10 microns to about 500 microns.

10. The duplex printing system of claim 6 , wherein the bottom layer comprises a thickness of from about 50 microns to about 1000 microns.

11. A substrate cooling unit for use with a duplex aqueous ink jet image forming device, comprising:
a first cooling roll;
a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between the first cooling roll and the first transport belt with a first surface of the individual sheets of image receiving media facing the first roll;
a second cooling roll positioned downstream of the first cooling roll in a process direction;
a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt with a second surface of the individual sheets of the image receiving media facing the second roll wherein the second transport belt comprises:
a bottom layer of woven or non-woven fibers;
an optional intermediate adhesive layer; and
a top rubber layer, wherein the second transport belt is operatively connected to a transfix belt actuator to move the top rubber layer of the second transport belt into and out of engagement with the individual sheets of image receiving media, and a rubber of the top rubber layer is selected from the group consisting of: nitrile butadiene rubber (NBR), ethylene propylene diene monomer rubber (EPDM) and fluoro elastomer; and

an invertor; and wherein
no unreacted contaminants leach from the first transport belt or the second transport belt.

12. The substrate cooling unit of claim 11 , wherein the top rubber layer comprises a thickness of from about 100 microns to about 2000 microns.

13. The substrate cooling unit of claim 11 , wherein the top rubber layer includes fillers selected from the group consisting of: carbon black, silica, titania and clay.

14. The substrate cooling unit of claim 11 , wherein the optional adhesive layer comprises a thickness of from about 10 microns to about 500 microns.

15. The substrate cooling unit of claim 11 , wherein the bottom layer comprises a thickness of from about 50 microns to about 1000 microns.

16. The substrate cooling unit of claim 11 , wherein the first transport belt comprises:
a bottom layer of woven or non-woven fibers;
an optional intermediate adhesive layer; and
a top rubber layer.

Assignees

• Xerox Corp

Inventors

• Baker John Patrick
• Sambhy Varun
• Badesha Santokh S
• Derleth David Scott
• Sokolowski Piotr

Classifications

• B41J29/377 Primary

  Cooling or ventilating arrangements · CPC title

• B41J2/01

  Ink jet · CPC title

• B41J11/007 Primary

  Conveyor belts or like feeding devices · CPC title

• G03G2215/2003

  Structural features of the fixing device · CPC title

• G03G2215/2029

  the belt further entrained around one or more stationary belt support members, the latter not being a cooling device · CPC title