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    Ink-jet printing apparatus, control method therefor, program, and storage medium
    7.
    发明授权
    Ink-jet printing apparatus, control method therefor, program, and storage medium 失效
    喷墨打印设备，其控制方法，程序和存储介质

    公开(公告)号：US07445309B2

    公开(公告)日：2008-11-04

    申请号：US11396457

    申请日：2006-04-04

    申请人： Daisaku Ide ,  Hirokazu Yoshikawa ,  Hitoshi Nishikori ,  Takeshi Yazawa ,  Atsuhiko Masuyama ,  Akiko Maru ,  Hideaki Takamiya ,  Hiroshi Tajika

    发明人： Daisaku Ide ,  Hirokazu Yoshikawa ,  Hitoshi Nishikori ,  Takeshi Yazawa ,  Atsuhiko Masuyama ,  Akiko Maru ,  Hideaki Takamiya ,  Hiroshi Tajika

    IPC分类号： B41J2/165

    CPC分类号： B41J2/16508 ,  B41J2/16532

    摘要： An object of this invention is to prevent prolongation of the time taken for a suction recovery operation while suppressing wasteful consumption of ink in the suction recovery operation. An ink-jet printing apparatus includes a plurality of caps which, when a plurality of nozzles of an ink-jet head are divided into a plurality of nozzle groups, are arranged one by one for the respective nozzle groups, and cap the respective nozzle groups, a suction pump which generates a negative pressure in the plurality of caps to suck ink from the plurality of nozzles, and is arranged commonly for the plurality of caps, and a control unit which controls the suction pump so as to make the negative pressure by the suction pump act on all the caps when a common negative pressure is generated in the plurality of caps, and make different negative pressures by the suction pump act sequentially on the plurality of caps when different negative pressures are generated in the respective caps.

    摘要翻译： 本发明的一个目的是防止抽吸恢复操作所花费的时间的延长同时抑制抽吸恢复操作中的墨水的浪费。 一种喷墨打印设备包括多个盖子，当将喷墨头的多个喷嘴分成多个喷嘴组时，将各个喷嘴组逐个布置，并且将各个喷嘴组盖住 抽吸泵，其在多个盖中产生负压以从多个喷嘴吸取墨，并且被共同设置用于所述多个盖;以及控制单元，其控制所述抽吸泵以使所述负压由 当在多个盖中产生常见的负压时，抽吸泵作用在所有的盖上，并且当在相应的盖中产生不同的负压时，抽吸泵使不同的负压顺序地作用在多个盖上。

    Ink jet printing method and ink jet printing system
    9.
    发明授权
    Ink jet printing method and ink jet printing system 有权
    喷墨打印方法和喷墨打印系统

    公开(公告)号：US07303247B2

    公开(公告)日：2007-12-04

    申请号：US11209629

    申请日：2005-08-24

    申请人： Akiko Maru ,  Hitoshi Nishikori ,  Hiroshi Tajika ,  Daisaku Ide ,  Takeshi Yazawa ,  Atsuhiko Masuyama ,  Hirokazu Yoshikawa ,  Hideaki Takamiya

    发明人： Akiko Maru ,  Hitoshi Nishikori ,  Hiroshi Tajika ,  Daisaku Ide ,  Takeshi Yazawa ,  Atsuhiko Masuyama ,  Hirokazu Yoshikawa ,  Hideaki Takamiya

    IPC分类号： B41J2/205

    CPC分类号： G06K15/107

    摘要： A mask pattern is employed for multi-pass printing. The mask pattern is the sum of a first mask pattern, relative to a first location that includes areas wherein dots are to be printed when a density value is smaller than a predetermined value, and a second mask pattern, relative to a second location that includes areas wherein dots are to be printed only when the density value is equal to or greater than the predetermined value. Using multiple scans, up to one dot is printed in the first region, while two dots or more are printed in the second region. With this arrangement, since the first mask pattern, which greatly affects a low-duty image, and the second mask pattern, which greatly affects a high-duty image, can be independently designed, problems that occur with images prepared at individual duties can be coped with by the separate mask patterns.

    摘要翻译： 采用掩模图案进行多遍打印。 掩模图案是第一掩模图案相对于第一位置的和，其包括当密度值小于预定值时要打印点的区域，以及第二掩模图案，相对于包括 仅当密度值等于或大于预定值时才打印点的区域。 使用多个扫描，在第一个区域中打印多达一个点，而在第二个区域打印两个点以上。 通过这种布置，由于可以独立地设计极大地影响低功率图像的第一掩模图案和极大地影响高占空比图像的第二掩模图案，因此可以独立地设计在各个任务中准备的图像所产生的问题 由单独的掩模图案处理。