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    Fountain solution deposition apparatus and method for digital printing device
    8.
    发明授权
    Fountain solution deposition apparatus and method for digital printing device 有权

    公开(公告)号：US10800196B2

    公开(公告)日：2020-10-13

    申请号：US15962063

    申请日：2018-04-25

    Applicant: Xerox Corporation

    Inventor： Jack T. Lestrange ,  Peter J. Knausdorf ,  Joseph C. Sheflin

    IPC: B41N3/08 ,  B41M1/06 ,  B41F31/18 ,  B41F7/02

    Abstract: 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.

    Waterless UV inkjet transfer system and method
    9.
    发明授权
    Waterless UV inkjet transfer system and method 有权

    公开(公告)号：US10155401B1

    公开(公告)日：2018-12-18

    申请号：US15809720

    申请日：2017-11-10

    Applicant: XEROX CORPORATION

    Inventor： Anthony S. Condello ,  Paul J. McConville ,  Jack T. Lestrange ,  Chu-Heng Liu

    IPC: B41J11/00

    Abstract: A solid blanket receives a flood layer of very thin (e.g., about 10 μm or less) image receiving UV curable coating, which may be a clear, substantially clear, or tinted UV ink. A lower viscosity digital ink image may then be printed on top of the flood layer, for example by jetting UV ink on top of the flood layer. The lower viscosity UV digital ink sits on top of the thicker UV curable coating and maintains its location by surface tension interaction with the coating. The combination of ink and coating is then partially cured to a tacky state at which point it is transferred to print media via a conformable pressure nip. Since the lower viscosity jetted inks are not responsible for directly wetting the media, media latitude widens greatly. Further, no dampening fluid or fountain solution is needed to aid the transfer or the imaging.

    Contamination-proof imaging member cleaning device and method
    10.
    发明授权
    Contamination-proof imaging member cleaning device and method 有权

    公开(公告)号：US10124576B2

    公开(公告)日：2018-11-13

    申请号：US15474812

    申请日：2017-03-30

    Applicant: XEROX CORPORATION

    Inventor： Jack T. Lestrange ,  Peter J. Knausdorf ,  Anthony S. Condello

    IPC: B41F35/06 ,  B41F7/02

    Abstract: A cleaning apparatus includes an inker roller and an ink source holding ink for the inker roller. The inker roller contacts a reimageable surface of an imaging member downstream of an ink image transfer station that transfers an ink image from the surface to a print sheet, with the surface having residual ink remaining thereon after the transfer of the ink image. The inker roller applies ink from the ink source against the reimageable surface. However, instead of the ink transferring from the inker roller to the surface, the ink stays with the inker roller and removes the residual ink from the surface to clean the surface for a subsequent ink image. The inker roller is not contaminated from removing the residual ink as the inker roller is designed to be coated by ink that adds to its coating of ink via the removed residual ink.

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