公开(公告)号：US20220258464A1

公开(公告)日：2022-08-18

申请号：US17177262

申请日：2021-02-17

申请人： Xerox Corporation

发明人： Jack T. LESTRANGE ,  Joseph C. SHEFLIN ,  Palghat S. RAMESH ,  Anthony S. CONDELLO ,  Brian M. BALTHASAR ,  Seemit PRAHARAJ ,  Chu-heng LIU ,  Paul J. MCCONVILLE ,  Douglas K. HERRMANN ,  Jason M. LEFEVRE

IPC分类号： B41F33/00 ,  B41M1/06 ,  G01F1/28

摘要： A drag force sensor on a fountain solution carrier roller surface measures drag force of a fountain solution layer on the fountain solution carrier roller surface in real-time during a printing operation. The measured drag force is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

公开(公告)号：US20150246552A1

公开(公告)日：2015-09-03

申请号：US14193033

申请日：2014-02-28

申请人： XEROX CORPORATION

发明人： Chu-heng LIU

IPC分类号： B41J2/32

CPC分类号： B41J2/32 ,  B41J2/325 ,  B42D25/29 ,  B42D25/41

摘要： A system for producing a security feature on a physical printed document that has a first image printed on a first side of a piece of medium is provided. The system includes a security portion forming device that melts a marking substance that forms the security portion of the first image such that the security portion soaks into the piece of medium and is visible from a second side of the piece of medium, the second side being opposite to the first side. The security portion is less than the entire first image, and a remainder portion of the first image is equal to the entire first image less the security portion.

摘要翻译： 提供了一种用于在物理打印文档上产生安全特征的系统，该系统具有印刷在一张介质的第一面上的第一图像。 所述系统包括：安全部分形成装置，其熔化形成所述第一图像的安全部分的标记物质，使得所述安全部分浸入所述介质片中并且可从所述介质片的第二侧可见，所述第二面为 与第一面相反。 安全部分小于整个第一图像，并且第一图像的剩余部分等于少于安全部分的整个第一图像。

公开(公告)号：US20140174310A1

公开(公告)日：2014-06-26

申请号：US13727566

申请日：2012-12-26

申请人： XEROX CORPORATION

发明人： Peter J. KNAUSDORF ,  Chu-heng LIU

IPC分类号： F17D1/20

CPC分类号： F17D1/20 ,  B41F7/24 ,  B41F7/30 ,  B41J2/0057

摘要： An ink-based digital printing system includes a dampening fluid delivery system that forms a dampening fluid layer on a reimageable surface of an imaging plate using vapor condensation. The system includes a delivery nozzle having a chamber that receives atomized dampening fluid, mixes the fluid with hot air or nitrogen gas for rapid vaporization, and directs the vapor onto an imaging member surface for condensation and dampening fluid layer formation.

摘要翻译： 基于油墨的数字印刷系统包括阻尼流体输送系统，其在蒸发冷凝的成像板的可再成像表面上形成阻尼流体层。 该系统包括具有容纳雾化阻尼流体的室的输送喷嘴，将流体与热空气或氮气混合以进行快速蒸发，并将蒸气引导到成像构件表面上用于冷凝和阻尼流体层形成。

公开(公告)号：US20220205778A1

公开(公告)日：2022-06-30

申请号：US17137473

申请日：2020-12-30

申请人： Xerox Corporation

发明人： Chu-heng LIU ,  Paul J. MCCONVILLE ,  Jason M. LEFEVRE ,  Douglas K. HERRMANN ,  Seemit PRAHARAJ

IPC分类号： G01B11/06 ,  B41M1/06

摘要： According to aspects of the embodiments, there is provided a method of measuring the amount of fountain solution employed in a digital offset lithography printing system. Fountain solution thickness is measured using a diffractive optical element (DOE) configured with grating surfaces varying in a periodic fashion to hold an amount of fountain solution. When radiated with a light source the combination of the grating surface and the fountain solution therein reduces the scattering of the surface structure (“contrast”) that gives rise to a diffraction pattern. The diffractive optical element can be placed on the printing blanket of the lithography printing system or on a separate substrate.

公开(公告)号：US20170217150A1

公开(公告)日：2017-08-03

申请号：US15014217

申请日：2016-02-03

申请人： XEROX CORPORATION

发明人： Steven R. MOORE ,  Peter J. KNAUSDORF ,  Chu-heng LIU

IPC分类号： B41F7/24 ,  B41J2/175

CPC分类号： B41F7/24 ,  B41C1/1008 ,  B41C1/1033 ,  B41F7/00 ,  B41J2/175 ,  B41M1/06 ,  B41N3/08 ,  B41P2227/70

摘要： An apparatus and method for printing directly onto print media including smooth non-absorbent media substrates (e.g., polymer films) inks having a wide range in viscosity, so that flexographic, gravure, and lithographic inks can all be contemplated. The proposed method is able to print with variable data/imaging. Dampening fluid may be patterned onto an imaging roll by coating the imaging roll with a layer of the dampening fluid and selectively evaporating off a patterned portion via a laser imaging device. The imaging roll then contacts the print substrate and transfers the patterned dampening fluid onto the substrate via film splitting. The substrate then passes through an inker station where ink is deposited directly to the substrate for attachment thereto except where rejected by the dampening fluid.

公开(公告)号：US20150309413A1

公开(公告)日：2015-10-29

申请号：US14264018

申请日：2014-04-28

申请人： XEROX Corporation

发明人： Chu-heng LIU ,  Santokh BADESHA

IPC分类号： G03F7/20

CPC分类号： B41F7/24 ,  G03F7/16 ,  G03F7/18

摘要： A system and method are provided for depositing a uniform layer of a dampening solution using a vapor deposition/condensation process or technique on a reimageable surface in an image forming device using a proposed variable data digital lithographic image forming architecture that transfers ink at an efficiency rate in excess of 95 percent. A reimageable surface is configured of a low surface energy surface component that directly accepts a vaporized dampening solution having a lower surface energy than the surface energy of the reimageable surface. A uniformity in the layer of condensed dampening solution on the reimageable surface is a product of the relative difference in the low surface energy of the reimageable surface and the lower surface energy of the dampening solution.

摘要翻译： 提供了一种系统和方法，用于使用蒸气沉积/冷凝工艺或技术在图像形成装置的可再成像表面上沉积均匀的阻尼溶液层，使用提出的可变数据数字平版印刷图像形成架构，其以高效率转印墨水 超过95％。 可重新成像的表面由低表面能表面组分构成，其直接接受具有比可再成像表面的表面能更低的表面能的汽化润版溶液。 在可再成像表面上的冷凝润版液层的均匀性是可再成像表面的低表面能与润湿溶液的下表面能的相对差异的乘积。

公开(公告)号：US20150174888A1

公开(公告)日：2015-06-25

申请号：US14139721

申请日：2013-12-23

申请人： XEROX CORPORATION

发明人： Chu-heng LIU

IPC分类号： B41F7/24

CPC分类号： B41F7/24 ,  B41C1/10 ,  B41F7/02 ,  B41F7/26 ,  B41F33/0054 ,  B41M1/06 ,  B41M5/0256 ,  B41N3/08 ,  B41N10/00 ,  B41N2210/14

摘要： An ink-based digital printing method includes applying conditioning fluid to an imaging member surface wherein the fluid is absorbed by imaging member surface, which includes VITON. Dampening fluid is subsequently applied to the imaging member surface for development by a laser imaging system to form a latent image. Ink is applied to the developed latent image on the imaging member surface to form an ink image that is transferred to paper to form a print that is free of tiger stripe image quality defects.

摘要翻译： 基于油墨的数字印刷方法包括将调理流体施加到成像构件表面，其中流体被包括VITON的成像构件表面吸收。 随后，通过激光成像系统将阻尼流体施加到成像构件表面以进行显影以形成潜像。 将油墨施加到成像构件表面上显影的潜像，以形成转印到纸上以形成没有虎纹图像质量缺陷的印刷品的油墨图像。

公开(公告)号：US20140341677A1

公开(公告)日：2014-11-20

申请号：US13897569

申请日：2013-05-20

申请人： XEROX Corporation

发明人： Bryan J. ROOF ,  Santokh S. BADESHA ,  Chu-heng LIU

IPC分类号： B42B5/08

CPC分类号： B42B5/08 ,  B42B5/10 ,  B42B5/103

摘要： A system and method are provided for forming and implementing book binding geometries as a function of image receiving medium stack thicknesses for automated book binding in image forming devices. The disclosed schemes optimize book binding employing a plurality of strip-like binding elements to form loops in a process that employs heat and pressure to reduce residual stresses in the strips as they are formed into loops. The disclosed schemes mechanically modify a process of bending individual book-binding elements in a manner that more effectively employs less expensive material elements to provide consistent and durable “right-sized” book binding of finished documents. A combination of heat and pressure are introduced with a molded structure that results in controlling a radius of formation to be consistently followed by the “folded” binding elements in order to relieve the stress and preserve the integrity of those binding elements in the finished product.

摘要翻译： 提供了一种系统和方法，用于根据图像接收介质堆叠厚度的函数形成和实现书本装订几何，用于图像形成装置中的自动书本装订。 所公开的方案优化使用多个带状结合元件的书籍装订，以在采用热和压力的过程中形成循环，以在条形成环时减少条中的残余应力。 所公开的方案以更有效地使用较便宜的材料元素来提供一致且持久的“正确尺寸”的已完成文件的书籍装订的方式机械地改变弯曲各个书本装订元件的过程。 引入热和压力的组合，其具有模制结构，其导致控制形成半径以一致地遵循“折叠”结合元件，以便减轻应力并保持成品中的这些结合元件的完整性。

公开(公告)号：US20140261030A1

公开(公告)日：2014-09-18

申请号：US13836164

申请日：2013-03-15

申请人： XEROX CORPORATION

发明人： Chu-heng LIU ,  Richard W. SEYFRIED ,  Jack LESTRANGE ,  Daniel M. BRAY

IPC分类号： B41F7/24

CPC分类号： B41F7/24

摘要： A dampening fluid metering system includes an anilox roll configured to meter dampening fluid onto a surface of an imaging member to form a thin, uniform layer of dampening fluid for subsequent imaging by exposure to light radiation. The anilox roll is configured to form a dampening fluid layer that is uniform and has a thickness of 1 micron or less, and preferably a thickness lying in a range of 0.2 to 1 micron.

摘要翻译： 阻尼流体计量系统包括网纹辊，其构造成将阻尼流体计量到成像构件的表面上以形成薄的均匀的润湿流体层，用于通过暴露于光辐射进行后续成像。 网纹辊构造成形成均匀的并具有1微米或更小的厚度，优选为0.2-1微米范围内的厚度的阻尼流体层。

公开(公告)号：US20140168329A1

公开(公告)日：2014-06-19

申请号：US13719219

申请日：2012-12-18

申请人： XEROX CORPORATION

发明人： Chu-heng LIU ,  Jing ZHOU

IPC分类号： B41J2/14

CPC分类号： B41J2/01 ,  B41J2002/012

摘要： An ink-based digital printing system for variable data lithographic printing includes an imaging member and a dampening fluid/carrier patterning system. An inkjet-type device of the patterning system jets material onto an imaging member. The as-jetted material includes dampening fluid and carrier component such as a wax jetted in a single phase. Upon contact with a surface of an imaging member, the jetted material cools and phase separation occurs, the dampening fluid leaching to a surface of the solid component on the imaging member surface, dampening the solid component, which forms an image according to image data input to the patterning system.

摘要翻译： 用于可变数据平版印刷的基于油墨的数字印刷系统包括成像构件和阻尼流体/载体图案形成系统。 图案形成系统的喷墨型装置将材料喷射到成像构件上。 被喷射的材料包括润湿流体和载体组分，例如在单相中喷射的蜡。 当与成像构件的表面接触时，喷射的材料冷却并发生相分离，润湿液浸出到成像构件表面上的固体组分的表面，从而抑制根据图像数据输入形成图像的固体成分 到图案化系统。