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    Ink jet printing method and apparatus using a print quality improving liquid
    3.
    发明公开
    Ink jet printing method and apparatus using a print quality improving liquid 失效
    一种喷墨打印的方法和设备使用打印质量改进液

    公开(公告)号：EP0802060A3

    公开(公告)日：1998-06-17

    申请号：EP97302613

    申请日：1997-04-16

    申请人： CANON KK

    发明人： INUI TOSHIHARU ,  INOUE TETSURO ,  YANO KENTARO ,  KOITABASHI NORIBUMI ,  UETSUKI MASAYA ,  KANEMATSU DAIGORO ,  KANDA HIDEHIKO ,  NAKAJIMA YOSHINORI

    IPC分类号： B41J2/21

    CPC分类号： B41J2/2114

    摘要： A method and an apparatus for ink jet printing use a print head including a first nozzle group for discharging a first ink, a second nozzle group for discharging a second ink and a third nozzle group for discharging a printability improving solution. The third nozzle group is displaced between the first nozzle group and the second nozzle group. The first nozzle group discharges the first ink on the printing medium based on image data to form an image, the third nozzle group discharges the printability improving solution on the image formed on the printing medium by means of another step, and the second nozzle group discharges the second ink on the image formed on the printing medium. The printability improving solution has higher penetrability into the printing medium compared to the ink.
    The method and apparatus can attain a clear colored, high density image without color mixing, which has high water resistance on plain paper, with a low running cost.

    Ink-jet printing system, and ink-jet printing method and apparatus
    4.
    发明公开
    Ink-jet printing system, and ink-jet printing method and apparatus 失效
    Tintenstrahldrucksystem，Verfahren und Apparat zum Tintenstrahldrucken

    公开(公告)号：EP0803360A3

    公开(公告)日：1998-08-12

    申请号：EP97302734

    申请日：1997-04-22

    申请人： CANON KK

    发明人： OHTSUKA NAOJI ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  NISHIKORI HITOSHI ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO ,  KANDA HIDEHIKO

    IPC分类号： B41J2/05 ,  B41J2/175 ,  G06K15/10 ,  H04N1/40 ,  B41J2/205

    CPC分类号： B41J2/17553 ,  B41J2/04553 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/1752 ,  G06K15/107 ,  H04N1/40025

    摘要： It is checked whether an ink used in a print head has a high density. The type of a printing medium used for a print operation is also identified. An image is printed by scanning the print head once or a plurality of numbers of times. When a print operation is to be performed by using a thick ink, an image is printed by using mask data and the driving frequency of the head which are set for the thick ink. When a print operation is to be performed by using a thin ink, an image is printed by using mask data and the driving frequency of the head which are set for the thin ink and the type of printing medium used for the print operation. Codes of the respective color data of print data are determined in accordance with the types of inks used for a print operation, and an image is printed by printing a plurality of dots or dots in an overlapping state by the multi-pass method.

    摘要翻译： 检查打印头中使用的墨水是否具有高密度。 还识别用于打印操作的打印介质的类型。 通过扫描打印头一次或多次打印图像。 当通过使用浓墨水进行打印操作时，通过使用为厚油墨设定的掩模数据和头部的驱动频率来打印图像。 当通过使用薄墨水进行打印操作时，通过使用用于薄墨水的打印头数据和头部的驱动频率以及用于打印操作的打印介质的类型来打印图像。 打印数据的各个颜色数据的代码根据用于打印操作的油墨的类型来确定，并且通过多遍方法以重叠状态打印多个点或点来打印图像。