公开(公告)号：US20180281462A1

公开(公告)日：2018-10-04

申请号：US15477292

申请日：2017-04-03

Applicant: Xerox Corporation

Inventor： Douglas K. HERRMANN ,  Jason LEFEVRE ,  Chu-Heng Liu ,  Paul MCCONVILLE

IPC: B41J3/407 ,  G06K7/10 ,  G06K19/07 ,  G06K19/06

CPC classification number: B41J3/4073 ,  B41M1/40 ,  G06K7/10366 ,  G06K19/06028 ,  G06K19/0723

Abstract: What is disclosed is an object holder for securely retaining an object while it is being printed in a direct-to-object print system and a direct-to-object print system configured to use various embodiments of the object holder of the present invention. In one embodiment, the object holder comprises a back support configured to slideably traverse a support member positioned parallel to a plane formed by at least one printhead configured to eject marking material on to a surface of an object A top and bottom arm are attached to the back support. At least two support braces are attached to the top and bottom arms. At least one restraining bar is slideably attached to the support braces such that the bar can be raised or lowered on to the object seated between the top and bottom arms. The bar physically retains the object while the object is being printed.

公开(公告)号：US10086626B1

公开(公告)日：2018-10-02

申请号：US15477239

申请日：2017-04-03

Applicant: Xerox Corporation

Inventor： Douglas K. Herrmann ,  Jason LeFevre ,  Chu-Heng Liu ,  Paul McConville

IPC: B41J3/407 ,  B41M1/40 ,  B41M5/00 ,  B41J2/045

Abstract: What is disclosed is a system for registering an object in a direct-to-object print system and a direct-to-object print system configured to operatively use various embodiments of the registration system of the present invention. In one embodiment, the marking system comprises a registration panel with a plurality of registration markings. A camera captures an image of the object in the object holder and the registration panel. A processor receives the image and analyzes the image to determine a position of the object relative to the markings on the registration panel. The processor determines whether the object is registered. If the object is registered, a controller causes the object holder to move the object past the printhead. Otherwise, if the object is not properly registered then the processor prevents the object from being printed and communicates a notification to a user that the object in the object holder is not registered.

公开(公告)号：US09376584B2

公开(公告)日：2016-06-28

申请号：US14033093

申请日：2013-09-20

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu

IPC: B41J2/21 ,  C09D11/38 ,  C09D11/106 ,  C09D11/14 ,  B41J2/005

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.

Abstract translation: 图像转印构件（ITM）在其表面上设置有皮肤，皮肤中含有吸湿剂。 吸湿剂可操作以使ITM皮肤非常亲水或提供高表面能。 一种这样的吸湿剂是可以用载体例如水施用于ITM表面的甘油。 在图像转印过程中，载体被完全或部分去除，例如通过干燥，留下吸湿剂的薄的皮肤。 以图像图案施加到皮肤上的墨滴在没有搅拌或拉伸的情况下展开，产生最佳的湿图像。

公开(公告)号：US09303185B2

公开(公告)日：2016-04-05

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: B41J2/01 ,  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。

公开(公告)号：US09157001B2

公开(公告)日：2015-10-13

申请号：US14033042

申请日：2013-09-20

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu

IPC: B41J2/01 ,  C09D11/30 ,  B41J2/21 ,  B41M5/00 ,  B41M5/025

CPC classification number: C09D11/30 ,  B41J2/01 ,  B41J2/2107 ,  B41M5/0011 ,  B41M5/0256

Abstract: A coating composition for an image transfer member in an aqueous ink imaging system is disclosed that comprises a hydrophilic composition and a surfactant. The hydrophilic composition can be a polyvinyl acetate-based composition.

Abstract translation: 公开了一种水性油墨成像系统中用于图像转印部件的涂料组合物，其包含亲水性组合物和表面活性剂。 亲水性组合物可以是基于聚乙酸乙烯酯的组合物。

公开(公告)号：US20150085037A1

公开(公告)日：2015-03-26

申请号：US14032945

申请日：2013-09-20

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu

IPC: B41J11/00

CPC classification number: B41J11/0015 ,  B41J2/0057 ,  B41J11/002

Abstract: An inkjet printer applies a layer of a hydrophilic composition, which includes a liquid carrier and an absorption agent, to an image receiving surface of an indirect image receiving member. A dryer in the printer removes a portion of the liquid carrier from the layer of hydrophilic composition to form a dried layer of an absorption agent on the image receiving surface and an aqueous ink image is formed on the dried layer. The aqueous ink image and at least a portion of the dried layer are transferred to a surface of a print medium as the aqueous ink image and print medium move through a transfix nip formed between the indirect image receiving member and a transfix member.

Abstract translation: 喷墨打印机将包含液体载体和吸收剂的亲水组合物层施加到间接图像接收构件的图像接收表面。 打印机中的干燥器从亲水组合物层去除一部分液体载体，以在图像接收表面上形成吸收剂的干燥层，并且在干燥层上形成水性墨水图像。 水性油墨图像和干燥层的至少一部分被转印到打印介质的表面，因为水性油墨图像和打印介质移动通过形成在间接图像接收构件和半透镜构件之间的转印辊隙。

公开(公告)号：US12151489B2

公开(公告)日：2024-11-26

申请号：US17816488

申请日：2022-08-01

Applicant: Xerox Corporation

Inventor： Seemit Praharaj ,  Jason Lefevre ,  Douglas K. Herrmann ,  Jorge A. Alvarez ,  Chu-Heng Liu ,  Yumeng Wu

IPC: B41J29/377 ,  B41J3/60 ,  B41J11/00 ,  B41J11/42

Abstract: Disclosed is a system and method for cooling paper within a printer assembly that includes at least one misting assembly designed to mist an aqueous solution onto an unprinted surface of paper stock after a first side is printed. At least one convection accelerator assembly is designed to accelerate evaporation of the aqueous solution before the printed paper stock arrives at the at least one printing station for printing on the unprinted surface. At least one or more of a paper temperature, machine temperature, printhead temperature, and humidity sensor are operationally coupled to at least one controller assembly programmed to control at least one or more of misting, humidity, and airflow. The at least one controller assembly is designed to determine the heat to be dissipated into the airflow from the printed paper stock to obtain a targeted paper temperature and, therefore, the amount and placement of aqueous solution misted.

公开(公告)号：US11760112B2

公开(公告)日：2023-09-19

申请号：US17217466

申请日：2021-03-30

Applicant: XEROX CORPORATION

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

IPC: B41J29/38 ,  B41J11/00

CPC classification number: B41J11/0085

Abstract: A printing system comprises a printhead to eject ink through an opening in a carrier plate to a deposition region. A print medium is held against a movable support surface by vacuum suction communicated through platen holes of a vacuum platen and transported through the deposition region. An airflow control system comprises upstream and downstream valves associated with the printhead, individually addressable channels for the vacuum platen, or both. The upstream and downstream valves are arranged to selectively block and allow airflow through an upstream side or a downstream side, respectively, of the opening in the carrier plate. Actuation of the upstream and downstream valves may be controlled based on a location of the print medium. The channels are arranged to selectively control the supply of vacuum suction to respectively corresponding columns of platen holes. Actuation of the channels may be controlled based on a size of the print medium.

公开(公告)号：US11697296B2

公开(公告)日：2023-07-11

申请号：US17216175

申请日：2021-03-29

Applicant: XEROX CORPORATION

Inventor： Douglas K. Herrmann ,  Linn C. Hoover ,  Patrick Jun Howe ,  Joseph C. Sheflin ,  Robert Jian Zhang ,  John Patrick Baker ,  Brian M. Balthasar ,  Glenn Batchelor ,  Anthony Salvatore Condello ,  Ali R. Dergham ,  Timothy P. Foley ,  Richard A. Kalb ,  Peter John Knausdorf ,  Jason M. LeFevre ,  Jack T. Lestrange ,  Chu-Heng Liu ,  Paul J. McConville ,  Seemit Praharaj ,  Palghat S. Ramesh ,  Erwin Ruiz ,  Emmett James Spence ,  Rachel Lynn Tanchak ,  Kareem Tawil ,  Carlos M. Terrero ,  Megan Zielenski

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 carrier plate and a printhead arranged to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device comprises a movable support surface to transport a print medium along a process direction through the deposition region, the media transport device holding the print medium against the movable support surface by vacuum suction. The air flow control system is arranged to selectively flow air through the opening of the carrier plate between the carrier plate and the printhead based on a location of a print medium transported by the media transport device relative to the printhead.

公开(公告)号：US20230150026A1

公开(公告)日：2023-05-18

申请号：US17455590

申请日：2021-11-18

Applicant: Xerox Corporation

Inventor： Joseph C. Sheflin ,  Chu-Heng Liu ,  Paul J. McConville ,  Peter Knausdorf ,  Alexander J. Fioravanti ,  Palghat S. Ramesh

IPC: B22F10/22 ,  B33Y10/00 ,  B33Y30/00 ,  B22D23/00 ,  B33Y50/02 ,  B22F10/85

CPC classification number: B22F10/22 ,  B33Y10/00 ,  B33Y30/00 ,  B22D23/003 ,  B33Y50/02 ,  B22F10/85

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is configured to eject melted metal drops from an ejector head at different velocities to form different portions of metal object layers with different measurable values of a same physical property. The different velocities are achieved by operating the ejector head with two different electrical voltages. The greater voltage that achieves the higher velocity is about 25% greater than the voltage used to achieve the lesser velocity. By operating the ejector head with the two different voltages different portions of the object can be formed with different physical property characteristics.