-
公开(公告)号：US11565475B2
公开(公告)日：2023-01-31
申请号：US16845312
申请日：2020-04-10
Applicant: Xerox Corporation
Inventor： David A. Mantell , Christopher T. Chungbin , Chu-Heng Liu , Scott J. Vader , Zachary S. Vader , Viktor Sukhotskiy , Denis Cormier , Kareem Tawil
IPC: B29C64/393 , B29C64/112 , B29C64/188 , B33Y50/02 , B33Y10/00
Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.
-
公开(公告)号：US20220410302A1
公开(公告)日：2022-12-29
申请号：US17360515
申请日：2021-06-28
Applicant: Xerox Corporation
Inventor： Jason M. LeFevre , Paul J. McConville , Douglas K. Herrmann , Chu-Heng Liu , Seemit Praharaj , Robert R. Reed
Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a vacuum system and a hold-down plate to secure a metal foil to the hold-down plate during manufacture of a metal object. The melted metal drops ejected by the apparatus to form the object bond to the metal foil to form the base layer of the object. When the vacuum system is deactivated after manufacture of the object is complete, the object and foil are removed from the apparatus intact and the foil not part of the base layer is trimmed from the object.
-
公开(公告)号：US20220402023A1
公开(公告)日：2022-12-22
申请号：US17348908
申请日：2021-06-16
Applicant: XEROX CORPORATION
Inventor： Seemit Praharaj , Jason M. LeFevre , Douglas K. Herrmann , Chu-Heng Liu , David Alan VanKouwenberg , Linn C. Hoover
Abstract: A dross abatement system for a printer is disclosed. The dross abatement system includes a print head ejector, a pump in communication with the print head ejector having an inner cavity, a first inlet coupled to the inner cavity, a supply of printing material external to the print head ejector, a heating element configured to heat the printing material in the ejector, and a supply of absorbent material external to the print head ejector. A method of abating dross in a metal jetting printer is also disclosed, which includes pausing an operation of the printer, advancing an absorbent material into a melt pool within a nozzle pump reservoir, wherein the melt pool may include a metal printing material, absorbing dross from the metal printing material, removing the absorbent material including the dross, and resuming operation of the metal jetting printer.
-
公开(公告)号：US11528386B1
公开(公告)日：2022-12-13
申请号：US17460866
申请日：2021-08-30
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Seemit Praharaj , Chu-Heng Liu , Jason M. LeFevre , Varun Sambhy
Abstract: A method of operating a printer separates the image data content of a sheet in a print job into multiple color separations. The first color separation printed on the sheet includes at least two fiducials printed in the least perceptible color of ink in the printer. The at least two fiducials are used to identify the process direction and skew of the printed sheet before the remaining color separations are printed on the sheet with the first color separation.
-
公开(公告)号：US11504766B2
公开(公告)日：2022-11-22
申请号：US17061213
申请日：2020-10-01
Applicant: XEROX CORPORATION
Inventor： Jason M. LeFevre , Douglas K. Herrmann , Paul J. McConville , Chu-Heng Liu , Seemit Praharaj
Abstract: A method includes moving a first part along a movement path. The method also includes introducing drops of a liquid metal onto the first part using a three-dimensional (3D) printer. The drops of the liquid metal solidify to form a second part that is joined to the first part. The method also includes mechanically joining the second part to a third part.
-
Patent Agency Ranking
公开(公告)号：US20220247888A1
公开(公告)日：2022-08-04
申请号：US17166607
申请日：2021-02-03
Applicant: Xerox Corporation
Inventor： Stuart A. Schweid , John T. Newell , Chu-Heng Liu , Roger L. Triplett , Mojgan Rabbani , Martin S. Maltz , David A. VanKouwenberg , Seemit Praharaj , Douglas R. Taylor , Martin L. Frachioni , Paul J. McConville
Abstract: A system and method enable determining a total colorant limit for printing images. The system includes memory which stores instructions for: determining a grain value for each of a set of printed patches printed on a first print media, the grain value being based upon a visual contrast sensitivity function computed for the respective patch, the set of printed patches including patches printed on the print media at different total colorant values; determining a total colorant limit for the first print media, as a function of the total colorant values and corresponding grain values for the printed patches in the set, wherein the total colorant limit is a total colorant value which corresponds to a grain value which does not exceed a threshold grain value for the first print media. A processor executes the instructions.
-
公开(公告)号：US20220105561A1
公开(公告)日：2022-04-07
申请号：US17061213
申请日：2020-10-01
Applicant: XEROX CORPORATION
Inventor： Jason M. LeFevre , Douglas K. Herrmann , Paul J. McConville , Chu-Heng Liu , Seemit Praharaj
Abstract: A method includes moving a first part along a movement path. The method also includes introducing drops of a liquid metal onto the first part using a three-dimensional (3D) printer. The drops of the liquid metal solidify to form a second part that is joined to the first part. The method also includes mechanically joining the second part to a third part.
-
公开(公告)号：US11117764B2
公开(公告)日：2021-09-14
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
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：US20210187953A1
公开(公告)日：2021-06-24
申请号：US16719327
申请日：2019-12-18
Applicant: Xerox Corporation
Inventor： Chu-Heng Liu , Douglas K. Herrmann , Paul J. McConville , Jason M. LeFevre , Seemit Praharaj , David A. VanKouwenberg , Michael J. Levy , Linn C. Hoover , Thomas J. Wyble , John P. Meyers
Abstract: An environmental conditioner in an aqueous inkjet printer conditions the print zone in the printer so aqueous ink at the nozzles of the printheads maintains its low viscosity state and does not dry. The environmental conditioner includes a humidifying chamber having a reservoir configured to contain a volume of water, a heater configured to heat the water in the water reservoir to a predetermined temperature range, an air inlet to move air into the humidifying chamber, an air discharge configured to remove humidified air from the humidifying chamber and direct the humidified air into a space between a faceplate of a printhead and a path for media passing by the faceplate of the printhead. The chamber can include an ultrasonic atomizer to produce a moisturized mist for absorption by the heated air or wicking material to transfer moisture to the air.
-
公开(公告)号：US20210101399A1
公开(公告)日：2021-04-08
申请号：US17124951
申请日：2020-12-17
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Seemit Praharaj , Jason M. LeFevre , Paul J. McConville , Chu-Heng Liu
IPC: B41M7/00 , B41M5/00 , B41J2/01 , C09D133/14 , C09D11/101 , C09D133/08 , B05D3/06 , B31D1/02 , B41M3/00 , C09J7/30
Abstract: An adhesive sign suited to use in retail applications includes a substrate layer. An adhesive layer is disposed on the substrate layer. The adhesive layer defines an exposed region for attachment to an associated structure. The adhesive layer is derived from a photo-curable inkjet composition. An ink layer is disposed on the substrate layer. The ink layer includes an image. The ink layer is derived from a photo-curable inkjet composition. The adhesive layer and ink layer can be formed in the same inkjet printing process and cured in a common photo-curing station. A stack of the adhesive signs can be assembled without interleaving a release liner between each pair of signs.
-
-
-
-
-
-
-
-
-
Search Results
139
records
(took 0.02 seconds)
