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    PRINT HEAD HEALTH DETERMINING DEVICE AND METHOD
    1.
    发明公开
    PRINT HEAD HEALTH DETERMINING DEVICE AND METHOD 审中-公开

    公开(公告)号：EP4512621A1

    公开(公告)日：2025-02-26

    申请号：EP23193115.5

    申请日：2023-08-24

    Applicant: Canon Production Printing Holding B.V.

    Inventor： OORTWIJN, Pawel ,  HAMMEN, Remco ,  RIEDEL, David

    IPC: B41J2/045 ,  B41J2/165 ,  B41J2/21 ,  B41J2/14

    Abstract: Print head health determining device (110), comprising: a print head interface (112) for connecting to a print head (120) or log server and obtaining status information with regard to the print head, a data processing device (114) connected to the print head interface and configured to process the print head status information and determine a print head health, and an output interface (116) connected to the data processing device and configured to output the print head health, and wherein the print head status information comprises one or more of: nozzle acoustic feedback information, information on the prior usage of expired ink, and nozzle failure detection information.

    TREATMENT SOLUTION
    7.
    发明公开
    TREATMENT SOLUTION 审中-公开

    公开(公告)号：EP4509325A1

    公开(公告)日：2025-02-19

    申请号：EP23788400.2

    申请日：2023-04-13

    Applicant: Kao Corporation

    Inventor： TAMURA, Yuichi ,  INOUE, Masashi ,  EGUCHI, Tetsuya

    IPC: B41M5/00 ,  B41J2/01 ,  C09D11/54

    Abstract: The present invention relates to [1] a treating solution containing an alkanediol (A) having 9 or more carbon atoms in which two hydroxy groups are respectively bonded to the carbon atoms that are non-adjacent to each other, at least one compound (B) selected from the group consisting of a polyvalent metal salt and a polyvalent amine, and water; [2] an ink set for ink-jet printing, which contains the treating solution described in the above [1], and an ink that contains a coloring material and water; and [3] an ink-jet printing method using the treating solution described in the above [1], which includes Step 1: applying the treating solution onto a printing medium to obtain a surface-treated printing medium, and Step 2: forming images on a treated surface of the surface-treated printing medium obtained in the step 1 in an ink-jet printing manner using an ink that contains a coloring material and water.

    TREATMENT SOLUTION
    8.
    发明公开
    TREATMENT SOLUTION 审中-公开

    公开(公告)号：EP4509324A1

    公开(公告)日：2025-02-19

    申请号：EP23788399.6

    申请日：2023-04-13

    Applicant: Kao Corporation

    Inventor： TAMURA, Yuichi ,  INOUE, Masashi ,  EGUCHI, Tetsuya

    IPC: B41M5/00 ,  B41J2/01 ,  C09D11/54

    Abstract: The present invention relates to [1] a treating solution containing 1,4-cyclohexanedimethanol, a polyvalent metal salt and water; [2] an ink set for ink-jet printing, which contains the treating solution described in the above [1], and an ink that contains a coloring material and water; and [3] an ink-jet printing method using the treating solution described in the above [1], which includes Step 1: applying the treating solution onto a printing medium to obtain a surface-treated printing medium, and Step 2: forming images on a treated surface of the surface-treated printing medium obtained in the step 1 in an ink-jet printing manner using an ink that contains a coloring material and water.

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