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公开(公告)号：US20180281465A1
公开(公告)日：2018-10-04
申请号：US15477631
申请日：2017-04-03
Applicant: Xerox Corporation
Inventor： Chu-Heng Liu , Paul J. MCCONVILLE , Jason M. LEFEVRE , Douglas K. HERRMANN
CPC classification number: B41J3/4073 , B25J15/0023
Abstract: What is disclosed is an object holder for retaining an object 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 shuttle mount configured to slideably traverse a support member positioned parallel to a plane formed by the printhead. At least one collapsible membrane is attached to the shuttle mount. The membrane forms an airtight sack filled with granules. The membrane collapses at least partially around an object when a volume of air is withdrawn from the membrane by a vacuum pump. The vacuum pump withdrawing a volume of air from the membrane causes the membrane to collapse and tightly pack the granules inside the membrane. The vacuum-packed granules cause the membrane to conform to the shape of the object thereby securing the object to the shuttle mount.
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2.发明申请公开(公告)号：US20220258464A1
公开(公告)日：2022-08-18
申请号：US17177262
申请日：2021-02-17
Applicant: Xerox Corporation
Inventor： 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
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20220205778A1
公开(公告)日：2022-06-30
申请号：US17137473
申请日：2020-12-30
Applicant: Xerox Corporation
Inventor： Chu-heng LIU , Paul J. MCCONVILLE , Jason M. LEFEVRE , Douglas K. HERRMANN , Seemit PRAHARAJ
Abstract: 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.
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4.发明申请公开(公告)号：US20180281456A1
公开(公告)日：2018-10-04
申请号：US15477156
申请日：2017-04-03
Applicant: Xerox Corporation
Inventor： Paul J. MCCONVILLE , Jason M. LEFEVRE , Chu-Heng LIU , Douglas K. HERRMANN , Kelly BURTON , Christopher Douglas ATWOOD , Elizabeth M. CROSSEN , Annie LIU
CPC classification number: H04N1/00129 , B41F17/002 , B41F17/006 , B41J3/4073 , H04N1/00278 , H04N1/00326 , H04N1/00342 , H04N1/00411 , H04N1/0044 , H04N1/3872 , H04N1/3877 , H04N1/393 , H04N2201/0084
Abstract: What is disclosed is system which facilitates the application of a mark to a surface of an object in a direct-to-object print system and a direct-to-object print system configured to use various embodiments of the present marking system. The present marking system comprises a camera for capturing an image of an object retained by an object holder configured to slideably traverse a support member positioned to be parallel to a plane formed by at least one printhead configured to eject in onto a surface of the object. A processor receives an image of an object held and communicates the image to a display. A mark to be printed on the object is retrieved and overlaid on the object in the image. A location of the overlaid mark is determined and communicated to a controller which causes the printhead to print the mark on the object at the location.
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5.发明申请SYSTEMS AND METHODS FOR IMPLEMENTING ADVANCED STRIPPING OF IMAGE RECEIVING MEDIA SUBSTRATES IN IMAGE FORMING DEVICES 有权在图像形成装置中实现图像接收介质基板的高级剥离的系统和方法公开(公告)号：US20160033905A1
公开(公告)日：2016-02-04
申请号：US14448982
申请日：2014-07-31
Applicant: XEROX Corporation
Inventor： Jason M. LEFEVRE , Jack T. LESTRANGE
IPC: G03G15/16
CPC classification number: G03G15/161 , G03G15/1605 , G03G15/6529 , G03G15/6532
Abstract: A system and method are provided implementing advanced stripping of image receiving media substrates, including substrates involved in any cut-sheet image forming process in an image forming device that includes a pressure nip necessitating an ability to reliably remove the sheets of image receiving media substrate from a conformable belt and/or roller surface. An appropriate peel force is applied to and opposite side of the image receiving media substrate that effectively peels an image receiving media substrate and image combination from an intermediate transfer belt downstream of a conformable transfer nip. A relatively small diameter stripper roller is positioned downstream of, and in close proximity to, the conformable transfer nip as an apparatus by which to effect application of the appropriate peel force. The small diameter stripper roller has a contact surface formed of an appropriately tacky material, including certain silicone materials, to apply the peel force.
Abstract translation: 提供一种实现图像接收介质基板的高级剥离的系统和方法，包括涉及图像形成装置中的任何切割片图像形成处理的基板，该图像形成装置包括需要将图像接收介质基板的片材可靠地从 适合的带和/或辊表面。 适当的剥离力被施加到图像接收介质基板的相对侧，其有效地将图像接收介质基板和图像组合从中间转印带下游到一致的转印间隙。 相对较小直径的剥离辊定位在适配转印辊隙的下方并且非常接近于作为施加适当剥离力的装置。 小直径剥离辊具有由适当的粘性材料（包括某些硅酮材料）形成的接触表面以施加剥离力。
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6.发明申请公开(公告)号：US20220410560A1
公开(公告)日：2022-12-29
申请号：US17358634
申请日：2021-06-25
Applicant: Xerox Corporation
Inventor： Seemit PRAHARAJ , Chu-heng LIU , Paul J. MCCONVILLE , Douglas K. HERRMANN , Jason M. LEFEVRE
Abstract: A coefficient of friction (COF) sensor on a carrier roll surface wetted with fountain solution transferred from an imaging member measures COF of the wetted carrier roll surface in real-time, even between or during printing operations. The transferred fountain solution may be concentrated and/or chilled to solidify before the measurement. The measured COF 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 an imaging or other 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：US20220203749A1
公开(公告)日：2022-06-30
申请号：US17137516
申请日：2020-12-30
Applicant: Xerox Corporation
Inventor： Douglas K. HERRMANN , Chu-heng LIU , Seemit PRAHARAJ , Paul J. MCCONVILLE , Jason M. LEFEVRE , Michael J. LEVY
Abstract: 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 glass roll at a lower temperature than the fountain solution. The lower temperature causes the fountain solution to undergo a change in state and in a solid state the fountain solution crystalizes and changes roll opacity with the thickness of the film. When radiated with a light source the opacity is continuously measured through the surface of the roller. The thickness of the crystallized fountain solution can then be determined via the opacity level increase by the crystallization and the impact to the opacity on the glass roll.
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