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    PRINTING MACHINE COMPRISING A PLURALITY OF INKJET PRINT HEADS ARRANGED TOGETHER IN A PRINTING UNIT
    1.
    发明公开
    PRINTING MACHINE COMPRISING A PLURALITY OF INKJET PRINT HEADS ARRANGED TOGETHER IN A PRINTING UNIT 审中-公开

    公开(公告)号：US20240262110A1

    公开(公告)日：2024-08-08

    申请号：US18685542

    申请日：2023-01-26

    申请人： KOENIG & BAUER AG

    发明人： Hartmut BREUNIG ,  Simon STAHL

    IPC分类号： B41J3/54 ,  B41J3/407 ,  B41J11/00

    CPC分类号： B41J3/543 ,  B41J3/407 ,  B41J11/007 ,  B41J11/009

    摘要： A printing machine includes a plurality of inkjet print heads arranged together in a printing unit and controlled by a control unit. At least two of the inkjet print heads are jointly arranged in relation to a stationary position in a transport path at a printing nip. The control unit activates a first inkjet print head when a substrate of a first substrate type moves past the stationary position, and activates a second inkjet print head when a substrate of a second substrate type moves past the stationary position. The first substrate type and the second substrate type differ from each other in material and/or nature of a surface to be printed. The inkjet print heads arranged in the printing unit are each configured to print an ink that comprises at least one colorant, both for the first substrate type and for the second substrate type.

    Stitching methods and systems
    2.
    发明授权
    Stitching methods and systems 有权

    公开(公告)号：US12043045B2

    公开(公告)日：2024-07-23

    申请号：US17951766

    申请日：2022-09-23

    申请人： Global Inkjet Systems Limited

    发明人： Philip Collins

    IPC分类号： B41J3/407 ,  B41J2/21 ,  B41J3/54 ,  B41J25/316

    CPC分类号： B41J3/4073 ,  B41J2/2132 ,  B41J3/543 ,  B41J25/316

    摘要： A method includes providing a printhead for printing an image on a surface from two different printhead positions relative to the surface, the two different printhead positions at first and second orientations, wherein the at least one printhead and the surface move relative to each other along a print path having two potentially overlapping swathes, determining an overlap area on the surface for the two overlapping swathes wherein the overlap area is to be printed on from either of the two different printhead positions, determining for each position in the overlap area at which an inkjet drop may be printed the angle of incidence at the surface of that drop, and selecting a stitch point or region in the overlap area wherein the difference between the angles of incidence at the surface of drops from the two printhead positions is kept within an acceptable limit.

    IMAGE FORMATION DEVICE
    6.
    发明申请
    IMAGE FORMATION DEVICE 审中-公开

    公开(公告)号：US20180281448A1

    公开(公告)日：2018-10-04

    申请号：US15716750

    申请日：2017-09-27

    申请人： BROTHER KOGYO KABUSHIKI KAISHA

    发明人： Yoshihisa KAYANAKA

    IPC分类号： B41J2/21 ,  B41J19/14 ,  B41J3/54

    CPC分类号： B41J2/2135 ,  B41J2/04581 ,  B41J2/14008 ,  B41J2/2132 ,  B41J3/4078 ,  B41J3/543 ,  B41J19/145

    摘要： An image formation device includes a plurality of first nozzles which eject a first ink, a plurality of second nozzles which eject a second ink, a processor which forms an image of a resolution R [dpi] on the basis of print data, and a memory which stores computer-readable instructions that, when executed by the processor, perform a process including performing an ejection control, when printing of adjacent D×R pixels is performed by the first ink at a high density Ph [%] that is higher than a unit density Pu [%], such that total densities of the second ink ejected onto each of the pixels in the pixel array by the plurality of times of scanning are, respectively, substantially the same as a maximum density of the second ink able to be ejected at one time from the second nozzles.