公开(公告)号：US10137634B2

公开(公告)日：2018-11-27

申请号：US15140589

申请日：2016-04-28

Applicant: Xerox Corporation

Inventor： Erwin Ruiz ,  Paul J. McConville ,  Chu-heng Liu ,  James A. Winters ,  Jason M. LeFevre

IPC: B29C64/20 ,  B33Y30/00 ,  B29C64/264 ,  B22F3/105 ,  B33Y10/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/205 ,  B29C64/223 ,  B29K105/00

Abstract: A 3-D printer includes a development station positioned to electrostatically transfer layers of material to an intermediate transfer surface, and a transfer station adjacent the intermediate transfer surface. The transfer station is positioned to receive the layers as the intermediate transfer surface moves past the transfer station. Also, a platen is included that moves relative to the intermediate transfer surface. The intermediate transfer surface transfers a layer of the material to the platen each time the platen contacts one of the layers on the intermediate transfer surface at the transfer station to successively form a freestanding stack of the layers on the platen. A fusing station is positioned to apply light to each layer, after each layer is transferred from the transfer station to the platen. The fusing station selectively applies the light to sinter a portion of the material within the layer.

公开(公告)号：US10040250B2

公开(公告)日：2018-08-07

申请号：US15098726

申请日：2016-04-14

Applicant: Xerox Corporation

Inventor： Chu-heng Liu ,  Paul J. McConville ,  Jason M. LeFevre ,  James A. Winters ,  Erwin Ruiz

IPC: B29C65/02 ,  B29C67/00 ,  G03G15/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29K77/00 ,  B29K25/00

Abstract: In 3-D printing a platen moves toward an intermediate transfer belt (ITB) to have a sheet positioned on the platen contact the ITB to electrostatically transfer a layer of different materials to the sheet, and then the platen moves to a stabilization station to join the layer to the sheet. This processing is repeated to have the sheet repeatedly contact the ITB (with intervening stabilization at the stabilization station) to successively form layers of the materials on the sheet. The freestanding stack is fed to a platform to successively form a 3-D structure of freestanding stacks of the layers. Heat and/or pressure and/or light are applied to the 3-D structure to bond the freestanding stacks to one another through the sheets of collapsible media on the platform.

公开(公告)号：US10005230B2

公开(公告)日：2018-06-26

申请号：US15150614

申请日：2016-05-10

Applicant: Xerox Corporation

Inventor： Jorge A. Alvarez ,  Michael F. Zona ,  William J. Nowak ,  Robert A. Clark ,  Chu-heng Liu ,  Paul J. McConville

IPC: B29C64/393 ,  B29C64/147 ,  B29K91/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/147 ,  B29C64/153 ,  B29C64/188 ,  B29C64/241 ,  B29C64/314 ,  B29K2091/00 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y50/02 ,  G03G15/1625 ,  G03G15/224

Abstract: 3-D printers include an intermediate transfer surface that transfers a layer of material to a platen each time the platen contacts the intermediate transfer surface to successively form a freestanding stack of layers of the material on the platen. A sensor detects the thickness of the layer on the platen after a fusing station fuses the layer. A feedback loop is electrically connected to the sensor and a development station (that includes a photoreceptor, a charging station providing a static charge to the photoreceptor, a laser device exposing the photoreceptor, and a development device supplying the material to the photoreceptor). The development station adjusts the transfer bias of the development device, based on a layer thickness measurement from the sensor through the feedback loop, to control the thickness of subsequent ones of the layers transferred from the intermediate transfer surface to the freestanding stack on the platen.

公开(公告)号：US20170334135A1

公开(公告)日：2017-11-23

申请号：US15157966

申请日：2016-05-18

Applicant: Xerox Corporation

Inventor： Chu-heng Liu

IPC: B29C64/209 ,  B29C64/112 ,  B29C64/10 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00 ,  B29K105/00

CPC classification number: B29C64/209 ,  B29C64/10 ,  B29C64/112 ,  B29K2105/0058 ,  B29K2995/002 ,  B29K2995/0026 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional object printer varies the finish in exposed surfaces of a printed object. The printer includes a controller operatively connected to at least two ejector heads, a leveling device, a curing device, and an actuator that is operatively connected to a member to which the at least two ejector heads, the leveling device, and the curing device are mounted. The controller is configured to detect a next layer to be formed being within a predetermined number of layers before an exposed surface is formed, to modify rendered data for the layers within the predetermined number of layers received from the source of rendered data, and to operate a plurality of ejectors in the at least two ejector heads with reference to the modified rendered data to apply a finish to the exposed surface.

公开(公告)号：US09604471B2

公开(公告)日：2017-03-28

申请号：US14791819

申请日：2015-07-06

Applicant: Xerox Corporation

Inventor： Chu-heng Liu

IPC: B41J11/00

CPC classification number: B41J11/0015

Abstract: An aqueous inkjet printer coats media with a material prior to printing without having to dry the material on the media. The printer includes a coating applicator for applying the material to the surface of a rotating member and a dryer for evaporating water from the material to raise its viscosity to a gel-like state. The coating is transferred to media in a nip formed between the rotating member and a roller.

公开(公告)号：US09242455B2

公开(公告)日：2016-01-26

申请号：US13943473

申请日：2013-07-16

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Chu-heng Liu ,  Srinivas Mettu ,  Anthony S. Condello

IPC: B41J2/01 ,  B41J2/005 ,  B41M5/00 ,  B41M5/025 ,  B41M5/03 ,  B41M5/52

CPC classification number: B41J2/0057 ,  B41M5/0017 ,  B41M5/0256 ,  B41M5/03 ,  B41M5/5218 ,  C09D1/00

Abstract: An image transfer medium for transferring an ink image onto a substrate is provided on its surface with a layer of particles that include an aggregation treatment agent capable of crashing out colorants, latex and/or resin in the liquid ink. A method for transferring an ink image includes providing an image transfer medium; applying a layer of particles to the image transfer medium, the particles including an aggregation treatment agent capable of crashing out colorants, latex and/or resin in liquid ink; applying liquid ink drops to the image transfer medium; initiating crashing of the colorant, latex and/or resin in the ink drops upon contact with the particles; and upon a sufficient amount of aggregation and drying, contacting a second substrate to the image transfer medium to transfer the ink from the transfer medium to the second substrate.

Abstract translation: 在其表面上提供用于将油墨图像转印到基材上的图像转印介质，其中包含能够在液体油墨中破碎着色剂，胶乳和/或树脂的聚集处理剂的颗粒层。 一种用于转印墨像的方法包括提供一图象转印介质; 将一层颗粒施加到图像转印介质上，所述颗粒包括能够在液体油墨中粉碎着色剂，胶乳和/或树脂的聚集处理剂; 将液体墨滴施加到图像转印介质上; 在与颗粒接触时引发着色剂，胶乳和/或树脂在墨滴中的崩溃; 并且在足够量的聚集和干燥时，使第二基底与图像转印介质接触，以将墨从转印介质转移到第二基底。

公开(公告)号：US09174432B2

公开(公告)日：2015-11-03

申请号：US13716892

申请日：2012-12-17

Applicant: Xerox Corporation

Inventor： Chu-heng Liu ,  Anthony S. Condello ,  Paul J. McConville ,  Srinivas Mettu

IPC: B41J2/01 ,  B41J2/21 ,  B41J2/005

CPC classification number: B41J2/01 ,  B41J2/0057 ,  B41J2/2107 ,  B41J2/2114 ,  B41J2002/012

Abstract: Described herein is a method and apparatus for ink jet printing. The method includes providing a wetting enhancement coating on a transfer member. The wetting enhancement coating includes water; non-water soluble binders selected from the group consisting of acrylic polymers, styrene acrylic polymers, vinyl-acrylic polymers, vinyl acetate ethylene; and a surfactant. The wetting enhancement coating is dried to form a film having a surface energy greater than 25 mJ/m2. Ink droplets are ejected onto the film to form an ink image on the film. The ink image is dried and the ink image and film are transferred to a recording medium.

Abstract translation: 这里描述了一种用于喷墨打印的方法和装置。 该方法包括在转移构件上提供润湿增强涂层。 润湿增强涂层包括水; 选自丙烯酸聚合物，苯乙烯丙烯酸聚合物，乙烯基 - 丙烯酸聚合物，乙酸乙烯酯乙烯的非水溶性粘合剂; 和表面活性剂。 将润湿增强涂层干燥以形成表面能大于25mJ / m 2的薄膜。 墨滴喷射到膜上以在膜上形成油墨图像。 油墨图像被干燥，油墨图像和胶片被转印到记录介质上。

公开(公告)号：US09063504B2

公开(公告)日：2015-06-23

申请号：US13719225

申请日：2012-12-18

Applicant: Xerox Corporation

Inventor： Chu-heng Liu

IPC: G03G15/16 ,  G03G15/00 ,  B41J11/00

CPC classification number: G03G15/6585 ,  B41J11/0015 ,  G03G15/6591 ,  G03G2215/00468

Abstract: A system for generating a differential gloss image useful for digital printing directly on covered packaging includes a packaging transport and a laser glossing imager. The packaging transport is configured to position packaging substrate having a printed image to a laser glossing imager. The printed image is formed of toner or ink, and covered by a transparent material. The packaging substrate is aligned with respect to the laser glossing imager exposing one or more portions of the covered printed image to radiation for altering a surface of the one or more portions of the printed image for forming a differential gloss image.

Abstract translation: 用于产生用于直接在有盖包装上进行数字印刷的差分光泽图像的系统包括包装运输和激光光泽成像器。 包装输送器被配置为将具有印刷图像的包装基板定位到激光光泽成像器。 印刷图像由调色剂或墨水形成，并被透明材料覆盖。 将包装衬底相对于激光光泽成像器对齐，将覆盖的印刷图像的一个或多个部分暴露于用于改变印刷图像的一个或多个部分的表面以形成差异光泽图像的辐射。

公开(公告)号：US08786655B2

公开(公告)日：2014-07-22

申请号：US13627245

申请日：2012-09-26

Applicant: Xerox Corporation

Inventor： Chu-heng Liu ,  Nancy Y. Jia ,  Jing Zhou

IPC: B41J2/47

CPC classification number: B41J2/525 ,  B41M7/0081 ,  B41M7/009

Abstract: A system for generating a differential gloss image includes a marking material having absorbing elements useful for absorbing electromagnetic radiation emitted by a laser glossing imager, and accommodating heating and resultant melting of the marking material for altering a surface of the marking material image. The absorbing element is a pigment or dye. The absorbing element is carbon black, or a pigment capable of absorbing IR light, while being transparent to visible light.

Abstract translation: 用于产生差分光泽图像的系统包括具有用于吸收由激光光泽成像仪发射的电磁辐射的吸收元件的标记材料，并且适应用于改变标记材料图像的表面的标记材料的加热和熔融。 吸收元件是颜料或染料。 吸收元件是炭黑或能够吸收IR光的颜料，同时对可见光透明。

公开(公告)号：US20250168289A1

公开(公告)日：2025-05-22

申请号：US18959517

申请日：2024-11-25

Applicant: Xerox Corporation

Inventor： Chu-heng Liu ,  Jorge A. Alvarez ,  Douglas K. Herrmann ,  Jason Matthew LeFevre ,  Seemit Praharaj

IPC: H04N1/32 ,  G06K15/10

Abstract: Methods and systems for securely rendering a security feature with image data to be printed, can involve providing within the image data, data relating to a group of spots, and within the image data, mixing spots of two or more spot sizes among the group of spots to embed information within a stochastic or frequency modulation halftone image. In an embodiment, operations may be implemented for rendering a part of the image with a first spot among the group of spots and a remaining portion of the image with a second spot among the group of spots, wherein the second spot is smaller in size than the first spot.