公开(公告)号：US11547771B2

公开(公告)日：2023-01-10

申请号：US17177300

申请日：2021-02-17

Applicant: Xerox Corporation

Inventor： Seemit Praharaj ,  Douglas K. Herrmann ,  Chu-Heng Liu ,  Paul J. McConville ,  Jason M. LeFevre ,  Linn C. Hoover ,  David A. VanKouwenberg

IPC: H04N1/00 ,  A61L2/10

Abstract: An apparatus includes, among other components, a frame adapted to be connected to the exterior surface of a device that has a touchscreen. A retractable cover is operatively connected to the frame. The size of the retractable cover is equal to at least the size of the touchscreen, and the retractable cover is positioned to extend so as to cover the touchscreen. At least one ultraviolet light is also operatively connected to the frame. The ultraviolet light is positioned to direct ultraviolet lighting toward the touchscreen when the retractable cover extends to cover the touchscreen.

公开(公告)号：US11203202B1

公开(公告)日：2021-12-21

申请号：US17007172

申请日：2020-08-31

Applicant: Xerox Corporation

Inventor： Jason M. LeFevre ,  David A. VanKouwenberg ,  Joseph M. Ferrara, Jr.

IPC: B41J2/165 ,  B41J2/14

Abstract: An inkjet printhead includes a faceplate mounted to a printhead body. The faceplate has a first area in which an array of inkjet nozzle openings is positioned. The area is covered with a hydrophobic coating. A second area of the faceplate outside of the array of inkjet nozzle openings is covered with a first hydrophilic coating that does not contact the hydrophobic coating covering the first area. A third area of the faceplate between the first area and the second area is covered with a second hydrophilic coating. One end of the third area contacts the hydrophobic coating and another end of the third area contacts the first hydrophilic coating to pull ink emitted onto the hydrophobic coating during a purge operation to the second area of the faceplate.

公开(公告)号：US20210187989A1

公开(公告)日：2021-06-24

申请号：US17190520

申请日：2021-03-03

Applicant: Xerox Corporation

Inventor： Linn C. Hoover ,  Erwin Ruiz ,  David A. VanKouwenberg ,  Paul M. Fromm ,  Jeffrey J. Bradway

IPC: B41M3/00 ,  B05D5/06 ,  B05D7/00 ,  B41M7/00 ,  G09F3/00 ,  B31D1/02 ,  G06Q30/06

Abstract: A color changing expiration indicator includes a reactive layer and a first barrier layer that covers at least a portion of the reactive layer. The color changing expiration indicator also includes a transmission layer that covers at least a portion of the first barrier layer, and a second barrier layer that covers at least a portion of the transmission layer. The color changing expiration indicator further includes a reactant layer that covers at least a portion of the second barrier layer. The reactant layer changes color responsive to a reaction that occurs between the reactant layer and the reactive layer.

公开(公告)号：US20210138802A1

公开(公告)日：2021-05-13

申请号：US16679215

申请日：2019-11-10

Applicant: Xerox Corporation

Inventor： Douglas K. Herrmann ,  Seemit Praharaj ,  Michael J. Levy ,  Jason M. Lefevre ,  Paul McConville ,  Chu-Heng Liu ,  Linn C. Hoover ,  David A. VanKouwenberg

IPC: B41J11/00

Abstract: A vacuum roller system and a method of operating the vacuum roller system can include a group of vacuum rollers operable to move a sheet of media through a dryer. The vacuum rollers do not require a vacuum to be drawn between the vacuum rollers. Each vacuum roller can include a plenum operable to direct the vacuum to a top portion of the vacuum roller to drive the sheet of media from one roller to the next roller. The plenum can engage vacuum holes in a rotating vacuum roller when the vacuum holes in the vacuum roller are aligned with the plenum.

公开(公告)号：US20200254765A1

公开(公告)日：2020-08-13

申请号：US16272086

申请日：2019-02-11

Applicant: Xerox Corporation

Inventor： Paul J. McConville ,  Jason M. LeFevre ,  Michael J. Levy ,  Seemit Praharaj ,  Chu-heng Liu ,  David A. VanKouwenberg ,  Linn C. Hoover ,  Douglas K. Herrmann

IPC: B41J2/165 ,  B41J2/21

Abstract: A cap is positioned to contact a printhead when the printhead is not ejecting liquid ink. The cap and the printhead create a sealed space adjacent printhead nozzles when contacting each other. A heated evaporator is connected to the cap and is adapted to evaporate an ink-compatible liquid to form a water and/or solvent vapor and supply the water and/or solvent vapor to the sealed space to protect the liquid ink in the nozzles. An insulator thermally insulates the heated evaporator from the printhead. This prevents the ink in the nozzles from drying and prevents the nozzles from clogging.

公开(公告)号：US20200254761A1

公开(公告)日：2020-08-13

申请号：US16272048

申请日：2019-02-11

Applicant: Xerox Corporation

Inventor： Michael J. Levy ,  Seemit Praharaj ,  Paul J. McConville ,  Jason M. LeFevre ,  Linn C. Hoover ,  Chu-heng Liu ,  David A. VanKouwenberg ,  Douglas K. Herrmann ,  John T. Newell ,  Richard A. Campbell ,  Ali R. Dergham ,  Glenn D. Batchelor ,  Robert A. Clark ,  Senthil Sivaraman

IPC: B41J2/165

Abstract: A cap is positioned to contact a printhead when the printhead is not ejecting liquid ink. The cap and the printhead create a sealed space adjacent printhead nozzles when contacting each other. A flexible blade is positioned to contact the printhead when the printhead is not in contact with the cap. The flexible blade is adapted to fold over to spread a liquid solution on the nozzles in a first direction, and the flexible blade is adapted to remove excess amounts of the liquid solution from the nozzles in a second direction. A humidifier is connected to the cap and adapted to supply a moisture form of the liquid solution to the sealed space. A moisture sensor is connected to the cap. The humidifier is adapted to vary supply of the moisture to the sealed space based on the amount of moisture detected by the moisture sensor.

公开(公告)号：US10723152B2

公开(公告)日：2020-07-28

申请号：US16050376

申请日：2018-07-31

Applicant: Xerox Corporation

Inventor： Paul M. Fromm ,  Erwin Ruiz ,  Linn C. Hoover ,  David A. VanKouwenberg

IPC: B41J11/00 ,  B41J11/057

Abstract: A printer includes a printhead assembly and a dryer. A transport mechanism conveys the printed media in a downstream direction between the printhead assembly and a dryer and between the dryer and an output device. The transport mechanism includes an electric field-generating transport member. The transport member includes a continuous belt supported by rollers. The belt is driven to transport the printed media on an upper surface of the belt. The belt includes an electrically-insulating inner layer and an electrically-insulating outer layer. First and second sets of electrical conductors are positioned intermediate the inner and outer layers. Electrical conductors in the second set are grounded and alternate with electrical conductors in the first set, A charging unit selectively applies a voltage to only a subset of the electrical conductors in the first set at a time, to electrostatically attract the printed media to the upper surface of the belt.

公开(公告)号：US09956789B2

公开(公告)日：2018-05-01

申请号：US14877924

申请日：2015-10-07

Applicant: XEROX Corporation

Inventor： Steven R Moore ,  Paul J McConville ,  Peter Michael Gulvin ,  Jason M. LeFevre ,  David A. VanKouwenberg ,  Andrew W. Hays

IPC: B41J11/00 ,  D21H19/14 ,  D21H23/30

CPC classification number: B41J11/0015 ,  D21H19/14 ,  D21H23/30

Abstract: A system and method are provided for controlling archival sheet curl formation in image receiving media substrates on which images are formed using aqueous inks as the marking material. Archival curl occurs over time and is based on a partial coverage of the image receiving media substrates by the deposited water-based marking materials. A unique post-processing scheme applies selective aqueous clear fluid onto imaged substrates (cut sheets) to substantially counteract long-term archival curl formation in the individual image receiving media substrates. Both opposing sides of the cut sheet are processed in a manner that causes them to substantially equally undergo the generally irreversible shrinkage phenomenon that leads to archival curl, thus substantially canceling out the archival curl formation mechanism. A clear fluid is applied image-wise to portions of one or both sides of the image receiving media substrates to counterbalance the formed aqueous ink image.

公开(公告)号：US12086403B2

公开(公告)日：2024-09-10

申请号：US17190501

申请日：2021-03-03

Applicant: Xerox Corporation

Inventor： Douglas K. Herrmann ,  Seemit Praharaj ,  Jason M. LeFevre ,  Paul J. McConville ,  Chu-Heng Liu ,  Linn C. Hoover ,  David A. VanKouwenberg

IPC: G06F3/0488 ,  B08B1/10 ,  G06K15/02

CPC classification number: G06F3/0488 ,  B08B1/10 ,  B08B2240/00 ,  G06K15/1809

Abstract: Devices include first and second frame elements having mounting points connectable to opposite ends (e.g., first end, second end) of the touchscreen. First and second rollers are connected, respectively, to the first and second frame elements. A web of transparent material is supported by and between the first and second rollers. Further, an ultraviolet light device is connected to the second frame element and is positioned to expose the web of transparent material to ultraviolet radiation to disinfect the transparent material between users.

公开(公告)号：US20220283683A1

公开(公告)日：2022-09-08

申请号：US17190501

申请日：2021-03-03

Applicant: Xerox Corporation

Inventor： Douglas K. Herrmann ,  Seemit Praharaj ,  Jason M. LeFevre ,  Paul J. McConville ,  Chu-heng Liu ,  Linn C. Hoover ,  David A. VanKouwenberg

IPC: G06F3/0488 ,  B08B1/00

Abstract: Devices include first and second frame elements having mounting points connectable to opposite ends (e.g., first end, second end) of the touchscreen. First and second rollers are connected, respectively, to the first and second frame elements. A web of transparent material is supported by and between the first and second rollers. Further, an ultraviolet light device is connected to the second frame element and is positioned to expose the web of transparent material to ultraviolet radiation to disinfect the transparent material between users.