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公开(公告)号：US11117764B2
公开(公告)日：2021-09-14
申请号：US16679215
申请日：2019-11-10
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Seemit Praharaj , Michael J. Levy , Jason M. Lefevre , Paul McConville , Chu-Heng Liu , Linn C. Hoover , David A. VanKouwenberg
Abstract: A vacuum roller system and a method of operating the vacuum roller system can include a group of vacuum rollers operable to move a sheet of media through a dryer. The vacuum rollers do not require a vacuum to be drawn between the vacuum rollers. Each vacuum roller can include a plenum operable to direct the vacuum to a top portion of the vacuum roller to drive the sheet of media from one roller to the next roller. The plenum can engage vacuum holes in a rotating vacuum roller when the vacuum holes in the vacuum roller are aligned with the plenum.
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公开(公告)号：US20180170081A1
公开(公告)日：2018-06-21
申请号：US15384425
申请日：2016-12-20
Applicant: Xerox Corporation
Inventor： Paul J. McConville , Jason M. Lefevre , Steven R. Moore , Douglas K. Herrmann
IPC: B41J29/377 , F28F7/02
CPC classification number: B41J29/377 , F28D2021/0029 , F28F3/12 , F28F7/02 , F28F2013/006 , F28F2265/24 , H01L23/3677 , H01L23/40 , H01L23/473
Abstract: A temperature control system, the system comprising a cooling block configured to be in conductive communication with a heat source, said cooling block comprising a stem and a base, a cooling fluid configured to circulate through the base of the cooling block, and an electrical barrier formed in the base of the cooling block between the heat source and the cooling fluid.
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公开(公告)号：US09815303B1
公开(公告)日：2017-11-14
申请号：US15203751
申请日：2016-07-06
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Jason M. Lefevre , Derek A. Bryl
CPC classification number: B41J11/0085 , B41J2/01 , B41J13/009 , B41J13/08 , B41J13/12 , B65H3/04 , B65H5/224 , B65H11/005 , B65H29/242 , B65H2406/3223 , B65H2406/362 , B65H2801/15
Abstract: A media transport system includes a belt with a plurality of rows of holes, a vacuum plenum, and a shutter. The belt is positioned over the vacuum plenum carries a plurality of media over the vacuum plenum. A row of holes in the belt includes inter-copy gaps that separate media on the belt and the inter-copy gaps include no holes in the belt. The shutter includes a solid member that prevents a flow of air between the vacuum plenum and a portion of the belt positioned above the first shutter and a first aperture formed through the solid member that is aligned with the row of holes in the belt.
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4.发明授权Systems and methods for implementing advanced stripping of image receiving media substrates in image forming devices 有权用于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：US09335669B2
公开(公告)日：2016-05-10
申请号：US14448982
申请日：2014-07-31
Applicant: XEROX Corporation
Inventor： Jason M. Lefevre , Jack T. Lestrange
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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公开(公告)号：US11493328B2
公开(公告)日：2022-11-08
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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Patent Agency Ranking
公开(公告)号：US11077679B2
公开(公告)日：2021-08-03
申请号：US16703656
申请日：2019-12-04
Applicant: Xerox Corporation
Inventor： David A. VanKouwenberg , Seemit Praharaj , Michael J. Levy , Douglas K. Herrmann , Paul McConville , Chu-Heng Liu , Linn C. Hoover , Jason M. Lefevre
Abstract: A marker transport system and a method of operating the marker transport system can include one or more print heads and a marker transport platen upon which a sheet of media moves. The transport platen can include airflow sections comprising process-direction slots. The plates can move in a cross-process direction, and can control airflow in an area under the print heads. The one or more plates in a first position can allow for airflow when the sheet of media is located at the first position and in a second position can block the airflow at the second position. A vacuum can be provided under the sheet of media as the sheet of media traverses a print path across the marker transport platen. A no-vacuum inter-document zone can be provided, which moves along with the sheet of media under the one or more print heads.
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公开(公告)号：US20210170766A1
公开(公告)日：2021-06-10
申请号：US16703656
申请日：2019-12-04
Applicant: Xerox Corporation
Inventor： David A. VanKouwenberg , Seemit Praharaj , Michael J. Levy , Douglas K. Herrmann , Paul McConville , Chu-Heng Liu , Linn C. Hoover , Jason M. Lefevre
Abstract: A marker transport system and a method of operating the marker transport system can include one or more print heads and a marker transport platen upon which a sheet of media moves. The transport platen can include airflow sections comprising process-direction slots. The plates can move in a cross-process direction, and can control airflow in an area under the print heads. The one or more plates in a first position can allow for airflow when the sheet of media is located at the first position and in a second position can block the airflow at the second position. A vacuum can be provided under the sheet of media as the sheet of media traverses a print path across the marker transport platen. A no-vacuum inter-document zone can be provided, which moves along with the sheet of media under the one or more print heads.
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公开(公告)号：US20210078814A1
公开(公告)日：2021-03-18
申请号：US16570577
申请日：2019-09-13
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Seemit Praharaj , Michael J. Levy , Jason M. Lefevre , Paul McConville , Chu-heng Liu , Linn C. Hoover , David A. VanKouwenberg
Abstract: A vacuum roller system and a method of operation the vacuum roller system can include an assembly of interdigitated rollers, and a vacuum system, wherein the assembly of interdigitated rollers is operably connected to the vacuum system to move sheets of media through a downstream dryer in a printer, wherein a vacuum is drawn between individual rollers among the assembly of interdigitated rollers so that the vacuum is distributed across a sheet of media and is split around the individual rollers. The spacing between the individual rollers among the assembly of interdigitated rollers is variable to vary the vacuum.
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公开(公告)号：US20180136495A1
公开(公告)日：2018-05-17
申请号：US15354301
申请日：2016-11-17
Applicant: Xerox Corporation
Inventor： Douglas K. Herrmann , Steven R. Moore , Jason M. Lefevre , Paul J. McConville
CPC classification number: G02F1/0121 , B41J2/447 , B41J2/455 , G02B26/0833 , G02F1/0009
Abstract: A switchable mirror system and method includes a laser imaging module including one or more lasers and one or more DMDs (Digital Micromirror Devices), and a switchable mirror component located in a path upstream from the DMD (or DMDs) to direct a laser from the DMD when there is pause in a printing operation facilitated by said laser imaging module. A non-mechanical and electronic switchable mirror is thus located in the laser path between an LDA (Laser Diode Array) and a DMD to divert energy out of the system and away from the DMD during periods of non-laser imaging without reducing or power down the laser system.
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公开(公告)号：US20230051340A1
公开(公告)日：2023-02-16
申请号：US17400202
申请日：2021-08-12
Applicant: XEROX CORPORATION
Inventor： Chu-Heng Liu , Jason M. Lefevre , Joseph C. Sheflin , Seemit Praharaj , Douglas K. Herrmann , David A. Vankouwenberg , Linn C. Hoover
Abstract: The present disclosure discloses methods and systems for removing dross from a liquid metal chamber, such as would be used in magnetohydrodynamic (MHD) or metal 3D printing. The method and systems comprise inserting a dross removal tool into a liquid metal chamber. A seal is compromised, fluidically connecting an evacuated volume and the liquid metal chamber. Pressure equalizes between the fluidically coupled volumes through an inflow of gas, liquid, and solid components from the liquid metal chamber into the dross removal tool. The dross removal tool is removed from the liquid metal chamber.
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