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公开(公告)号：US10737483B2
公开(公告)日：2020-08-11
申请号：US15898721
申请日：2018-02-19
IPC分类号： B41F13/193 , B41F31/04 , B41F31/08 , B41F31/20 , B41F7/04 , B41F7/20 , B41F31/02 , B41F31/18 , B41F31/06 , B41F9/06
摘要： In a digital inking system having an anilox member that carries a patterned metered layer of ink to a digital imaging member, and a doctor blade that removes excess ink from the surface of the anilox member resulting in the patterned metered layer, an overfill form roller in rolling contact with the anilox member adds an overcoat layer of ink on the patterned metered layer for transfer of both layers of ink to the digital imaging member. The overcoat layer of ink uniformly covers all regions of the anilox member and the mattered metered layer of ink, including lands of the anilox cell walls to make the combined layers of ink pattern-free.
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2.发明授权Systems and methods for implementing an advanced inker unit surface conditioning system in a variable data digital lithographic printing device 有权用于在可变数据数字平版印刷装置中实现先进的墨水单元表面调节系统的系统和方法公开(公告)号：US09272506B2
公开(公告)日：2016-03-01
申请号：US14318654
申请日：2014-06-29
CPC分类号： B41F35/04 , B41F7/24 , B41F31/027 , B41P2235/22
摘要： A system and method are provided for providing an improved inker unit surface cleaning and conditioning system, including in a single anilox chamber blade system, for improving image quality, including eliminating ghosting, in a proposed variable data digital lithographic image forming architecture. Techniques are provided to remove acquired oil from an inking member. A particularly-configured containment encloses a cleaner (disturber) roller to emulsify the acquired oil on the inking roller. The cleaner roller is preferably configured with a pliable surface including a silicon roller surface over a porous base. The silicon roller (1) absorbs dampening solution oil; and (2) agitates ink that may be still held in certain cells/cavities of the inking member or roller. In embodiments, a vacuum pressure is applied to the inside of the hollow cleaner roller to better remove the residual ink and dampening solution from the inking roller.
摘要翻译： 提供了一种系统和方法，用于在所提出的可变数据数字平版印刷图像形成架构中提供改进的墨水单元表面清洁和调节系统，其包括在单个网纹室室叶片系统中，以改善图像质量，包括消除重影。 提供技术来从上墨构件中去除所获得的油。 特别构造的容纳物包围清洁器（干燥器）辊，以将所获取的油乳化在着墨辊上。 清洁辊优选地配置有在多孔基底上包括硅辊表面的柔韧表面。 硅辊（1）吸收润版液; 和（2）搅拌可能仍然保持在着墨构件或辊的某些单元/空腔中的墨。 在实施例中，真空压力被施加到中空的清洁辊的内部，以更好地从上墨辊中去除残留的墨水和阻尼溶液。
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公开(公告)号：US11890863B2
公开(公告)日：2024-02-06
申请号：US17218849
申请日：2021-03-31
申请人： XEROX CORPORATION
发明人： Anthony Salvatore Condello , Peter John Knausdorf , Jack T. Lestrange , Palghat S. Ramesh , Joseph C. Sheflin
CPC分类号： B41J11/0085 , B41J11/007 , B41J11/06 , B65H5/04 , B65H5/222
摘要： A printing system comprises an ink deposition assembly and a media transport device. The ink deposition assembly comprises printheads to deposit a print fluid, such as ink, on print media, such as paper. The media transport device holds the print media against a movable support surface, such as a belt, by vacuum suction platen and transports the print media though a deposition region. The vacuum suction is communicated to the movable through platen holes and platen channels in a vacuum platen. At least some of the platen channels have a high impedance region that has a reduced open cross-sectional area as compared to another region of the platen channel.
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公开(公告)号：US11801674B2
公开(公告)日：2023-10-31
申请号：US17149161
申请日：2021-01-14
申请人： Xerox Corporation
发明人： Anthony S. Condello , Jack T. Lestrange , Joseph C. Sheflin , Brian M. Balthasar , Palghat S. Ramesh
CPC分类号： B41F31/13 , B41F33/0063
摘要： An optical gloss meter above an imaging member surface measures fountain solution surface gloss on the imaging member surface in real-time during a printing operation. The measured gloss corresponds to a thickness of the fountain solution layer and may be used in a feedback loop to actively control 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.
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公开(公告)号：US11613131B2
公开(公告)日：2023-03-28
申请号：US17216192
申请日：2021-03-29
申请人： XEROX CORPORATION
发明人： Joseph C. Sheflin , Anthony Salvatore Condello , Peter John Knausdorf , Jack T. Lestrange , Palghat S. Ramesh
摘要： 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 to eject a print fluid through an opening of the 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 comprising an airflow guide structure extending into the opening of the carrier plate, the airflow guide structure configured to flow air at a direction aimed under the printhead and at an oblique angle relative to the movable support surface. The air flow control system controls the air supply unit to selectively flow the air based on a location of a print medium relative to the printhead.
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公开(公告)号：US10076881B2
公开(公告)日：2018-09-18
申请号：US15259773
申请日：2016-09-08
申请人： Xerox Corporation
CPC分类号： B29C64/112 , B29C64/245 , B29C64/386 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A method of forming a base for supporting a three-dimensionally printed object includes operating at least one ejector of a three-dimensional object printer to form the base. At least one ejector is operated to eject build material to form a planar layer of build material on a platen, and to form a first plurality of anchoring portions on the planar layer. At least one ejector is operated to eject support material to form a plurality of second anchoring portions interlocked with the first anchoring portions so that the first and second anchoring portions form a planar anchoring layer, and to form a planar layer of support material on the anchoring layer that defines a planar base for supporting a three-dimensional object.
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公开(公告)号：US20180065323A1
公开(公告)日：2018-03-08
申请号：US15259773
申请日：2016-09-08
申请人： Xerox Corporation
CPC分类号： B29C67/0092 , B29C64/112 , B29C64/245 , B29C67/0059 , B29C67/0088 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A method of forming a base for supporting a three-dimensionally printed object includes operating at least one ejector of a three-dimensional object printer to form the base. At least one ejector is operated to eject build material to form a planar layer of build material on a platen, and to form a first plurality of anchoring portions on the planar layer. At least one ejector is operated to eject support material to form a plurality of second anchoring portions interlocked with the first anchoring portions so that the first and second anchoring portions form a planar anchoring layer, and to form a planar layer of support material on the anchoring layer that defines a planar base for supporting a three-dimensional object.
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公开(公告)号：US12023921B2
公开(公告)日：2024-07-02
申请号：US17477417
申请日：2021-09-16
申请人： Xerox Corporation
发明人： Peter Knausdorf , Jack T. Lestrange , Palghat S. Ramesh , Joseph C. Sheflin , Anthony S. Condello
CPC分类号： B41J2/04508 , B41J2/04586 , H04N1/0044 , H04N1/4092 , H04N1/58 , H04N1/6097 , B41J2/2114
摘要： An MFD is disclosed. For example, the MFD includes a printhead to dispense print material, an enhancement printhead to dispense an enhancement printing fluid, a processor and a non-transitory computer-readable medium storing a plurality of instructions. The instructions when executed by the processor cause the processor to perform operations that include determining that an automated enhancement feature was selected, analyzing each pixel of an image to be printed to determine one or more pixels that are to receive the enhancement printing fluid, controlling the printhead to print the image, and controlling the enhancement printhead to dispense the enhancement printing fluid on the one or more pixels that are to receive the enhancement printing fluid.
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公开(公告)号：US11697296B2
公开(公告)日：2023-07-11
申请号：US17216175
申请日：2021-03-29
申请人： XEROX CORPORATION
发明人： 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
CPC分类号： B41J11/0085
摘要： 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.
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公开(公告)号：US10800196B2
公开(公告)日：2020-10-13
申请号：US15962063
申请日：2018-04-25
申请人： Xerox Corporation
摘要： An intermediate roller positioned between a fountain solution vapor supply and an imaging member decouples fountain solution vapor deposition from the surface of the imaging member. The intermediate roller may be temperature controlled. A uniform layer of fountain solution condenses onto the surface of the temperature controlled intermediate roller regardless of the imaging blanket temperature. The fountain solution condensate layer deposited onto the intermediate roller splits and deposits a thin uniform layer of fountain solution liquid onto the imaging member surface. This liquid layer split may be independent of the temperature of the imaging member surface, resulting in a uniform layer of fountain solution on the imaging blanket for better imaging quality. Remotely locating the vaporizing chamber away from the imaging member prevents undesired heat transfer from a hot vaporizing chamber/baffle to the imaging member surface.
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