公开(公告)号：US10539732B2

公开(公告)日：2020-01-21

申请号：US15630144

申请日：2017-06-22

Applicant: Xerox Corporation

Inventor： David C. Craig ,  Chu-Heng Liu

IPC: F21V8/00 ,  G06K9/20 ,  G09F13/18 ,  B29C64/00 ,  G02B6/42 ,  G01N21/47

Abstract: A display device component includes an optical waveguide having a surface; a first material formed on a portion of the surface of the optical waveguide; and a second material formed on a portion of the first material. The first material has light scattering properties.

公开(公告)号：US20190358965A1

公开(公告)日：2019-11-28

申请号：US15988532

申请日：2018-05-24

Applicant: Xerox Corporation

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

IPC: B41J11/00 ,  B41J13/00 ,  B41J2/01

Abstract: An aqueous ink printer includes a dryer that enables coated substrates printed with aqueous ink images to be adequately dried before discharge of the substrates. The dryer has a housing, a plurality of laser diodes, and a controller configured to operate the laser diodes with reference to ink coverage densities in an ink image and a speed of a media transport moving the substrate bearing the ink image as the substrate passes the plurality of diodes. The controller varies the intensity of the radiation emitted by the laser diodes to correspond with the ink coverage density opposite each laser diode as the ink image passes through the dryer.

公开(公告)号：US10168279B1

公开(公告)日：2019-01-01

申请号：US15630161

申请日：2017-06-22

Applicant: Xerox Corporation

Inventor： David C. Craig ,  Chu-Heng Liu

IPC: F21V8/00 ,  G01N21/47 ,  G06K9/20

Abstract: A display device component includes an optical waveguide having a surface; a first material formed on a portion of the surface of the optical waveguide; and a second material formed on a portion of the first material. The first material has light scattering properties.

公开(公告)号：US10016972B2

公开(公告)日：2018-07-10

申请号：US15142516

申请日：2016-04-29

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu

IPC: B41J2/21 ,  B41J2/005 ,  C09D11/38 ,  C09D11/106 ,  C09D11/14 ,  C09D103/02 ,  C09D133/06

CPC classification number: B41J2/0057 ,  B41J2/21 ,  C09D11/106 ,  C09D11/14 ,  C09D11/38 ,  C09D103/02 ,  C09D133/06

Abstract: An image transfer member (ITM) is provided with a skin over its surface in which the skin incorporates a hygroscopic agent. The hygroscopic agent is operable to make the ITM skin very hydrophilic or to provide a high surface energy. One such hygroscopic agent is glycerol that may be applied to the surface of the ITM with a carrier, such as water. In an image transfer process, the carrier is completely or partially removed, such as by drying, leaving a thin skin of the hygroscopic agent. Ink drops applied in an image pattern onto the skin spread without puddling or draw-backs, producing an optimum wet image.

公开(公告)号：US09463649B1

公开(公告)日：2016-10-11

申请号：US14866131

申请日：2015-09-25

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu ,  Anthony S. Condello ,  Jeffrey J. Folkins

IPC: B41J11/00 ,  B41J2/01

CPC classification number: B41J11/002 ,  B41J3/543

Abstract: A printer comprises a plurality of printheads, at least one auxiliary dryer positioned immediately adjacent the plurality of printheads and configured to control spread of ink drops ejected by the plurality of printheads, a main dryer positioned to dry ink on the media after the media has passed the at least one auxiliary dryer, at least one actuator to drive media transport and move media past each of these components, and a controller. The power of the main dryer is higher than the power of the auxiliary dryer. The controller is operatively connected to each of the components and is configured to control the operation of the at least one auxiliary dryer with reference to the type of media being printed and the type of ink being ejected. A method for operating the printer is also disclosed.

Abstract translation: 打印机包括多个打印头，至少一个辅助烘干机，其定位成与所述多个打印头紧邻，并配置成控制由所述多个打印头喷射的墨滴的扩散;主干燥器，定位成在所述介质已经通过之后将油墨干燥在所述介质上 所述至少一个辅助干燥器，用于驱动介质传送并移动介质经过这些部件中的每一个的至少一个致动器以及控制器。 主干燥机的功率高于辅助烘干机的功率。 控制器可操作地连接到每个部件，并且被配置为参照所打印的介质的类型和喷射的油墨的类型来控制至少一个辅助干燥器的操作。 还公开了一种用于操作打印机的方法。

公开(公告)号：US20160237296A1

公开(公告)日：2016-08-18

申请号：US14621105

申请日：2015-02-12

Applicant: XEROX CORPORATION

Inventor： Guiqin Song ,  Chu-Heng Liu ,  Marcel P. Breton

IPC: C09D103/00

CPC classification number: C09D103/02 ,  C09D5/008 ,  C09D103/00 ,  C08L29/04

Abstract: Disclosed herein are sacrificial coating compositions comprising at least one polyvinyl alcohol; at least one waxy starch; at least one hygroscopic agent; at least one surfactant; and water, wherein the ratio by weight of the at least one waxy starch to the at least one polyvinyl alcohol is at least two to one. In certain embodiments, the at least one polyvinyl alcohol has a degree of hydrolysis of at least about 95%, such as at least about 98%, or at least about 99.3%. In certain embodiments, the viscosity of the at least one polyvinyl alcohol in a deionized water solution at 20° C. ranges from about 30 cps to about 80 cps, wherein the solution contains 4% by weight polyvinyl alcohol relative to the total weight of polyvinyl alcohol and deionized water in the solution. Also disclosed herein are methods of making a sacrificial coating composition.

公开(公告)号：US20160159084A1

公开(公告)日：2016-06-09

申请号：US15019760

申请日：2016-02-09

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu

IPC: B41J2/005 ,  B41J11/00 ,  C09D11/38

CPC classification number: B41J2/0057 ,  B41J2/2107 ,  B41J11/0015 ,  B41M5/0017 ,  B41M5/5236 ,  C09D5/00 ,  C09D11/30 ,  C09D11/38 ,  C09D103/12

Abstract: An aqueous ink transfer process includes coating the surface of an image transfer member (ITM) with a coating composition to a first thickness, the coating composition including a hydrophilic composition and a surfactant, partially drying the coating composition to reduce its thickness and then applying aqueous ink onto the coating composition. The coating composition in the vicinity of the applied ink swells by absorbing water from the ink, and can further exhibit reduced adherence to the ITM. The ink is partially dried and then transferred onto a substrate.

Abstract translation: 水性墨水转印方法包括将涂料组合物的图像转印部件（ITM）的表面涂覆至第一厚度，涂料组合物包括亲水性组合物和表面活性剂，部分干燥涂料组合物以减小其厚度，然后施加水溶液 油墨到涂料组合物上。 施加的油墨附近的涂料组合物通过从油墨中吸收水而溶胀，并且可以进一步降低对ITM的粘附性。 将油墨部分干燥，然后转移到基材上。

公开(公告)号：US20150315403A1

公开(公告)日：2015-11-05

申请号：US14266375

申请日：2014-04-30

Applicant: Xerox Corporation

Inventor： Guiqin Gail Song ,  Gordon Sisler ,  Suxia Yang ,  Qi Zhang ,  Biby Esther Abraham ,  Brynn Dooley ,  Gabriel Iftime ,  Chu-Heng Liu

IPC: C09D129/04 ,  C08K11/00 ,  C08K5/053

CPC classification number: C09D129/04 ,  B41J2/01 ,  B41J2002/012 ,  B41M5/0256 ,  B41M5/50 ,  B41M2205/10 ,  C08K5/053 ,  C08K11/00 ,  C09D129/14 ,  C08L71/02

Abstract: A coating composition for an image transfer member in an aqueous ink imaging system is disclosed. The coating composition comprises: at least one polymer selected from the group consisting of i) polyvinyl alcohol and ii) a copolymer of vinyl alcohol and alkene monomers; at least one hygroscopic material; and at least one surfactant. An indirect printing apparatus and an indirect printing process employing the coating composition are also disclosed.

Abstract translation: 公开了一种用于水性墨水成像系统中的图像转印部件的涂料组合物。 涂料组合物包含：至少一种选自i）聚乙烯醇和ii）乙烯醇和烯烃单体的共聚物的聚合物; 至少一种吸湿材料; 和至少一种表面活性剂。 还公开了使用该涂料组合物的间接印刷设备和间接印刷方法。

公开(公告)号：US09073357B1

公开(公告)日：2015-07-07

申请号：US14219518

申请日：2014-03-19

Applicant: Xerox Corporation

Inventor： Anthony S. Condello ,  Christopher G. Lynn ,  Chu-Heng Liu ,  Daniel J. McVeigh

IPC: B41J11/00

CPC classification number: B41J11/0015 ,  B41J2/01 ,  B41J2002/012

Abstract: An inkjet printer includes a blower that directs heated air flow towards a layer of a hydrophilic composition on an image receiving surface. A controller regulates the operation of the blower with reference to image data of ink drops on an image receiving member to control a dryness level of the hydrophilic composition layer.

Abstract translation: 喷墨打印机包括鼓风机，其将图像接收表面上的热空气流引向亲水组合物层。 控制器参照图像接收部件上的墨滴的图像数据来调节鼓风机的操作，以控制亲水性组合物层的干燥度。

公开(公告)号：US20150165758A1

公开(公告)日：2015-06-18

申请号：US14105498

申请日：2013-12-13

Applicant: XEROX CORPORATION

Inventor： Varun Sambhy ,  Srinivas Mettu ,  Santokh S. Badesha ,  Chu-Heng Liu ,  Anthony S. Condello

IPC: B41J2/005 ,  C09D175/04

CPC classification number: C09D175/04 ,  B41J2/01 ,  B41J2002/012 ,  Y10T428/24851

Abstract: An indirect printing apparatus is disclosed. The printing apparatus comprises an intermediate transfer member. A polyurethane based sacrificial coating is on the intermediate transfer member. The printing apparatus also comprises a coating mechanism for forming the sacrificial coating onto the intermediate transfer member and a drying station for drying the sacrificial coating. At least one ink jet nozzle is positioned proximate the intermediate transfer member and configured for jetting ink droplets onto the sacrificial coating formed on the intermediate transfer member. An ink processing station is configured to at least partially dry the ink on the sacrificial coating formed on the intermediate transfer member. The printing apparatus comprises a substrate transfer mechanism for moving a substrate into contact with the intermediate transfer member.

Abstract translation: 公开了一种间接印刷装置。 印刷装置包括中间转印部件。 聚氨酯基牺牲涂层在中间转印部件上。 印刷设备还包括用于在中间转印部件上形成牺牲涂层的涂覆机构和用于干燥牺牲涂层的干燥台。 至少一个喷墨喷嘴位于中间转印部件附近，并且被配置用于将墨滴喷射到形成在中间转印部件上的牺牲涂层上。 油墨处理站构造成至少部分地干燥形成在中间转印部件上的牺牲涂层上的油墨。 打印装置包括用于使基板移动与中间转印部件接触的基板传送机构。