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    CARRIER FLUID ADDITION DURING NON-PRINT CYCLES
    1.
    发明申请
    CARRIER FLUID ADDITION DURING NON-PRINT CYCLES 审中-公开

    公开(公告)号：US20190361376A1

    公开(公告)日：2019-11-28

    申请号：US16348570

    申请日：2017-02-14

    申请人： HP Indigo B.V.

    发明人： Asaf Anufa ,  Ronen Bitan ,  Doron Schlumm ,  Shmuel Borenstain

    IPC分类号： G03G15/10 ,  G03G21/00

    摘要： In an example, a method includes applying a liquid print agent comprising a carrier fluid to a photoconductive surface and reducing a proportion of the carrier fluid in the liquid print agent on the photoconductive surface at a first location during a print cycle of a print apparatus. The method may further include, during a non-print cycle of the print apparatus, adding carrier fluid to the photoconductive surface at the first location.

    Charge roller positioning
    2.
    发明授权
    Charge roller positioning 有权

    公开(公告)号：US10114308B2

    公开(公告)日：2018-10-30

    申请号：US15545967

    申请日：2015-04-24

    申请人： HP INDIGO B.V.

    发明人： Shmuel Borenstain ,  Ami Halfon ,  Henryk Birecki ,  Seongsik Chang

    IPC分类号： G03G15/02 ,  G03G15/16 ,  G03G15/10 ,  G03G21/00

    摘要： In one example, a method for calibrating a position of a charge roller is described. The method may include a processor positioning a first end of a charge roller to a first plurality of index positions, determining a capacitance between the charge roller and a photoconductor imaging plate at each of the first plurality of index positions, determining a first index position of the first plurality of index positions with a greatest change in capacitance, and calibrating a position of the charge roller based upon the first index position.

    Liquid electrophotographic printers
    3.
    发明授权
    Liquid electrophotographic printers 有权

    公开(公告)号：US10437177B2

    公开(公告)日：2019-10-08

    申请号：US16254226

    申请日：2019-01-22

    申请人： HP Indigo, B.V.

    发明人： Shmuel Borenstain ,  Asaf Anufa

    IPC分类号： G03G15/11 ,  G03G15/16 ,  G03G21/00

    摘要： In certain examples, a liquid electrophotographic printer has a compressive element. The compressive element removes a portion of carrier liquid from an inked image on an imaging element. The compressive element is selectively engageable and a controller disengages the compressive element for a first layer of liquid toner so as to retain carrier liquid in the first layer, and engages the compressive element for a subsequent layer of liquid toner so as to remove a portion of carrier liquid from the subsequent layer.

    Electrostatic printing
    5.
    发明授权
    Electrostatic printing 有权

    公开(公告)号：US10156816B2

    公开(公告)日：2018-12-18

    申请号：US15545932

    申请日：2015-03-31

    申请人： HP INDIGO B.V.

    发明人： Uri Lidai ,  Shmuel Borenstain

    IPC分类号： G03G15/10 ,  G03G15/16 ,  G03G15/01 ,  G03G9/08 ,  G03G9/12

    摘要： A method of electrostatic printing may include forming a latent electrostatic image on a surface and transferring a first volume of a charged toner to the latent electrostatic image on the surface. The method may also include transferring a second volume of a charged toner to the surface, such that a toner image including the first volume of charged toner and the second volume of charged toner is formed on the surface, the second volume of charged toner being disposed on the first volume of charged toner. The method may also include transferring the image to a print substrate.

    ELECTROSTATIC PRINTING
    7.
    发明申请
    ELECTROSTATIC PRINTING 审中-公开

    公开(公告)号：US20180017897A1

    公开(公告)日：2018-01-18

    申请号：US15545932

    申请日：2015-03-31

    申请人： HP INDIGO B.V.

    发明人： Uri Lidai ,  Shmuel Borenstain

    IPC分类号： G03G15/10 ,  G03G15/01 ,  G03G9/12 ,  G03G15/16 ,  G03G9/08

    CPC分类号： G03G15/104 ,  G03G9/0823 ,  G03G9/12 ,  G03G15/0168 ,  G03G15/10 ,  G03G15/1605

    摘要： Herein is disclosed a method of electrostatic printing. The method may include forming a latent electrostatic image on a surface and transferring a first volume of a charged toner to the latent electrostatic image on the surface. The method may also include transferring a second volume of a charged toner to the surface, such that a toner image comprising the first volume of charged toner and the second volume of charged toner is formed on the surface, the second volume of charged toner being disposed on the first volume of charged toner. The method may also include transferring the image to a print substrate.