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    Printer and computer-implemented process for controlling a printer
    22.
    发明授权
    Printer and computer-implemented process for controlling a printer 有权

    公开(公告)号：US10532559B2

    公开(公告)日：2020-01-14

    申请号：US15989458

    申请日：2018-05-25

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Xavier Quintero Ruiz ,  Roma Segura Fabregas ,  Marcos Casaldaliga

    IPC: B41J2/045 ,  B41J2/155 ,  B41J2/21 ,  B41J29/393

    Abstract: In some examples, a printer includes neighboring nozzle arrays extending across a print zone, each nozzle array of the neighboring nozzle arrays extending along an axis and comprising a first section of nozzles and a second section of nozzles, wherein the second sections of the neighboring nozzle arrays overlap defining an overlap region and the first sections of the neighboring nozzle arrays define non-overlap regions. A controller is to cause printing of a test pattern using the neighboring nozzle arrays, the test pattern comprising a first pattern printed by the second sections of the neighboring nozzle arrays in the overlap region, and a reference pattern printed by a first section of the first sections of the neighboring nozzle arrays in a non-overlap region of the non-overlap regions, receive detected characteristics of the printed test pattern, compare the characteristics of the printed test pattern in the overlap region and in the non-overlap region, and derive alignment information based on the comparing.

    APPLYING FIRST AND SECOND WEAVING MASKS
    23.
    发明申请
    APPLYING FIRST AND SECOND WEAVING MASKS 审中-公开

    公开(公告)号：US20190291435A1

    公开(公告)日：2019-09-26

    申请号：US16301716

    申请日：2016-07-29

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Leticia Rubio ,  Utpal Sarkar ,  Xavier Quintero Ruiz

    IPC: B41J2/155 ,  B41J2/21

    Abstract: A printing apparatus comprises a printhead and a controller. The printhead includes dies, each die comprising rows of nozzles, wherein, in an overlapping region, the rows of nozzles of two dies overlap in a first direction, in which a relative movement between the printhead and a print medium takes place during operation of the printing apparatus. The controller is to apply a first weaving mask to a first row of nozzles of a first die and a second weaving mask to a second row of nozzles of the first die, the second weaving mask being different from the first weaving mask, the weaving masks defining, independent of print data, which of the nozzles of the corresponding row are to be used for printing in the overlapping region.

    DEPOSITING PRINT AGENT
    24.
    发明申请
    DEPOSITING PRINT AGENT 审中-公开

    公开(公告)号：US20190184720A1

    公开(公告)日：2019-06-20

    申请号：US16329494

    申请日：2016-10-24

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Leticia Rubio ,  Raul Rodriguez Alonso ,  Marti Rius Rossell ,  Utpal Kumar Sarker ,  Xavier Quintero Ruiz

    IPC: B41J25/00 ,  B41J2/165

    CPC classification number: B41J25/006 ,  B41J2/16517 ,  B41J2/17 ,  B41J2/175 ,  B41J2/2132

    Abstract: A method of printing is disclosed. The printing may involve printing on a printable medium using a print head having a plurality of nozzles, the printable medium having a leading edge and a defined zone adjacent to the leading edge. The print head may be to deposit print agent onto the printable medium via the plurality of nozzles during successive printing passes. The method may comprise: during a first printing pass, depositing print agent from a subset of the plurality of nozzles onto the printable medium outside the defined zone. The method may further comprise: advancing the printable medium by a defined distance. The method may further comprise: during a second printing pass, depositing print agent from a subset of the plurality of nozzles onto the printable medium within the defined zone

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