公开(公告)号：US20230193470A1

公开(公告)日：2023-06-22

申请号：US17559653

申请日：2021-12-22

Applicant: Xerox Corporation

Inventor： Nan-Xing HU ,  Yulin WANG ,  Sandra J. GARDNER

IPC: C23C18/16 ,  C08J3/14 ,  C08J3/05 ,  C23C18/31

CPC classification number: C23C18/1641 ,  C08J3/14 ,  C08J3/05 ,  C23C18/31 ,  C08J2377/00

Abstract: Metallized polymer particle compositions may comprise polymer particles, and a metal coating on an outer surface of at least a portion of the polymer particles. The metal coating comprises a plating metal and overlays a plurality of two-dimensional conductive nanoparticles and a catalyst metal. The metal coating may be formed by at least an electroless plating process conducted in the presence of the catalyst metal. The polymer particles may comprise thermoplastic polymer particles.

公开(公告)号：US11681477B1

公开(公告)日：2023-06-20

申请号：US17574613

申请日：2022-01-13

Applicant: Xerox Corporation

Inventor： Barry K. Ayash ,  Randy R. Sprague ,  Mark A. Rule

IPC: G06F3/12

CPC classification number: G06F3/121 ,  G06F3/1256 ,  G06F3/1204

Abstract: A processor of a printing apparatus obtains and maintains the media type of print media located in a media storage component of the printing apparatus. The processor also accesses a reference file containing different printing speed limits for different media types. The reference file can be maintained in an electronic storage component of the printing apparatus. The processor uses the reference file to determine an appropriate printing speed limit for a printing engine of the printing apparatus that corresponds to the media type of the print media in the media storage component. Further, a user interface of the printing apparatus can display an overspeed indicator, and/or the processor can stop the printing from occurring, based on a job-set printing speed of the printing engine being above the printing speed limit.

公开(公告)号：US20230183403A1

公开(公告)日：2023-06-15

申请号：US17546126

申请日：2021-12-09

Applicant: Xerox Corporation

Inventor： Sepehr M. Tehrani

IPC: C08F212/08 ,  C08L25/14 ,  C08K5/521 ,  C09D11/38 ,  C09D11/322 ,  C09D11/106

CPC classification number: C08F212/08 ,  C08L25/14 ,  C08K5/521 ,  C09D11/38 ,  C09D11/322 ,  C09D11/106

Abstract: Latex compositions are provided. In embodiments, a latex comprises water and resin particles. The resin particles comprise a polymerization product of reactants comprising one or more types of hydrophobic monomers and one or more types of acidic monomers comprising one or more types of phosphoric acid monomers, wherein a total amount of polymerized acidic monomers in the resin particles is at least about 8 weight % and a total amount of polymerized phosphoric acid monomers in the resin particles is at least about 2 weight %.

公开(公告)号：US11667136B2

公开(公告)日：2023-06-06

申请号：US17218873

申请日：2021-03-31

Applicant: XEROX CORPORATION

Inventor： Douglas K. Herrmann ,  Jason M. LeFevre ,  Chu-Heng Liu ,  Paul J. McConville ,  Seemit Praharaj

IPC: B41J11/00

CPC classification number: B41J11/0085 ,  B41J11/007

Abstract: A printing system comprises a printhead to eject a print fluid to a deposition region. Print media are held by vacuum suction against a movable support surface, which moves over a vacuum platen to transport the print media through the deposition region. The vacuum platen has platen holes through which the vacuum suction is communicated. Multiple vacuum plenums are provided to supply the vacuum suction to different groups of the platen holes. A first vacuum plenum is fluidically coupled to a first group of the platen holes located at least partially in the deposition region, and to a second group of platen holes located upstream of the first group. A second vacuum plenum is fluidically coupled to a third group of the platen holes comprising at least some platen holes located between the first and second groups of platen holes.

公开(公告)号：US20230159683A1

公开(公告)日：2023-05-25

申请号：US17493966

申请日：2021-10-05

Applicant: Xerox Corporation

Inventor： Richard P. N. Veregin ,  Kimberly D. Nosella ,  Raysa Rodriguez Diaz ,  Nan-Xing Hu ,  Majid Kamel ,  Cuong Vong

IPC: C08F220/22 ,  C08F212/36 ,  C08F220/34 ,  C08F230/08 ,  G03G9/087

CPC classification number: C08F220/22 ,  C08F212/36 ,  C08F220/34 ,  C08F230/08 ,  G03G9/08728

Abstract: An organic polymeric particle including an optional first monomer comprising a hydrophobic monomer; a second monomer comprising two or more vinyl groups; an optional third monomer comprising an amine; and a vinyl siloxane polymerizable monomer.

公开(公告)号：US20230158575A1

公开(公告)日：2023-05-25

申请号：US17534040

申请日：2021-11-23

Applicant: XEROX CORPORATION

Inventor： Seemit Praharaj ,  Douglas K. Herrmann ,  Jason M. LeFevre

IPC: B22F12/53 ,  B22D23/00 ,  B22F10/22 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F12/53 ,  B22D23/003 ,  B22F10/22 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A metal ejecting apparatus is disclosed. The metal ejecting apparatus includes a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of the liquid metal printing material, a float in contact with a surface of the liquid metal printing material, where the float is buoyant within the liquid printing material, and a filament attached to the float on a first end and attached to a level sensing system on a second end. The level sensing system may include an ultrasonic sensor, a visual sensor, a mechanical force sensor, a laser sensor, or a combination thereof. A method of sensing and controlling a level of liquid printing material in a metal jetting apparatus is also disclosed.

公开(公告)号：US20230158573A1

公开(公告)日：2023-05-25

申请号：US17455785

申请日：2021-11-19

Applicant: Xerox Corporation

Inventor： Glenn E. Batchelor ,  Ali R. Dergham ,  Timothy P. Foley

IPC: B22F12/17

CPC classification number: B22F12/17 ,  B33Y30/00

Abstract: A three-dimensional (3D) metal object manufacturing apparatus has a build platform heater that is configured with a plurality of temperature sensors and heating elements distributed throughout the heater. The signals generated by the temperature sensors are monitored by a controller and when one of the signals is outside of a temperature range around a temperature setpoint for the heater, the controller adjusts a PWM signal operating a switch that connects the heating element corresponding to the temperature sensor that generated the signal outside of the temperature range. The temperature sensors and heating elements are distributed in a plurality of cells that border one another in a contiguous pattern.

公开(公告)号：US20230150202A1

公开(公告)日：2023-05-18

申请号：US17995557

申请日：2022-03-22

Applicant: XEROX CORPORATION ,  NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Sarah J. VELLA ,  Alexandros VASILEIOU ,  Yujie ZHU ,  Edward G. ZWARTZ ,  Chantal PAQUET

IPC: B29C64/314 ,  B33Y10/00 ,  B33Y70/10 ,  B29C64/118

CPC classification number: B29C64/314 ,  B33Y10/00 ,  B33Y70/10 ,  B29C64/118 ,  B29K2101/12

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer material comprising at least one thermoplastic polymer, and a plurality of piezoelectric covalently bonded to the at least one thermoplastic polymer and dispersed in at least a portion of the polymer material. The compositions are extrudable and may be pre-formed into a form factor suitable for extrusion. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

公开(公告)号：US11648784B2

公开(公告)日：2023-05-16

申请号：US17216232

申请日：2021-03-29

Applicant: XEROX CORPORATION

Inventor： Douglas K. Herrmann ,  Jason M. LeFevre ,  Chu-Heng Liu ,  Paul J. McConville ,  Seemit Praharaj

IPC: B41J29/38 ,  B41J11/00

CPC classification number: B41J11/0085

Abstract: A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a printhead to eject a print fluid through an opening of a carrier plate to a deposition region. The media transport device holds a print medium against the movable support surface by vacuum suction and transports the print medium through the deposition region. The air flow control system comprises an air supply unit to selectively flow air through the opening based on a location of a print medium relative to the printhead. The air supply unit comprises an air guide structure comprising an air outlet portion extending into the opening of the carrier plate between the printhead and the carrier plate, the air outlet portion terminating in an end wall that is angled obliquely relative to the movable support surface towards a reverse-process direction.

公开(公告)号：US11643540B2

公开(公告)日：2023-05-09

申请号：US17329357

申请日：2021-05-25

Applicant: Xerox Corporation

Inventor： Chunliang Lu ,  Valerie Kuykendall ,  Chieh-Min Cheng

IPC: C08L25/14

CPC classification number: C08L25/14 ,  C08L2205/03

Abstract: Methods for forming latexes are provided. In embodiments, such a method comprises adding a first portion of a monomer emulsion comprising water, a monomer, an acidic monomer, a multifunctional monomer, and a first reactive surfactant to a reactive surfactant solution comprising water and a second reactive surfactant to form a reaction mixture, wherein the reactive surfactant solution does not comprise monomers other than the second reactive surfactant; adding a first portion of an initiator solution to the reaction mixture so that monomers undergo polymerization reactions to form resin seeds in the reaction mixture; adding a second portion of the monomer emulsion to the reaction mixture comprising the resin seeds; and adding a second portion of the initiator solution to the reaction mixture to form a latex comprising resin particles.