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    INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD
    1.
    发明申请
    INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD 审中-公开
    喷墨打印设备和喷墨打印方法

    公开(公告)号：US20110304666A1

    公开(公告)日：2011-12-15

    申请号：US13214364

    申请日：2011-08-22

    申请人： Kiichiro Takahashi ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Akiko Maru ,  Yoshiaki Murayama ,  Takatoshi Nakano ,  Hiroshi Taira

    发明人： Kiichiro Takahashi ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Akiko Maru ,  Yoshiaki Murayama ,  Takatoshi Nakano ,  Hiroshi Taira

    IPC分类号： B41J29/38

    CPC分类号： B41J19/145

    摘要： After a first scan in a forward direction, conveying corresponding to one nozzle block is performed, and then in a second scan in a backward direction, printing of a “printing area 1,” which is a unit area, is completed. Then after completion of printing of the unit area, conveying corresponding to 14 nozzle blocks is performed. Then by reciprocal third and fourth scans, printing of a “printing area 2” is completed in a likewise manner. Subsequently, two scans in a reciprocal manner are performed in a likewise manner to perform printing of each unit area. In any unit area, printing time intervals between scans are such that, at a same position in a scan direction, the time interval is the same. Consequently, differences in density between unit areas that are adjacent in a conveying direction of a printing medium, that is, between-band unevenness becomes more difficult to recognize.

    摘要翻译： 在向前方向进行第一扫描之后，执行对应于一个喷嘴块的传送，然后在向后方向的第二扫描中完成打印作为单位区域的“打印区域1”。 然后在完成打印单元区域之后，执行对应于14个喷嘴块的传送。 然后通过相互的第三和第四扫描，以类似的方式完成“打印区域2”的打印。 随后，以相同方式执行两次扫描以执行每个单位区域的打印。 在任何单位区域中，扫描之间的打印时间间隔使得在扫描方向上的相同位置处时间间隔相同。 因此，在打印介质的输送方向上相邻的单位面积之间的密度差，即带间不均匀性变得更难以识别。

    Ink jet printing apparatus and ink jet printing method
    2.
    发明授权
    Ink jet printing apparatus and ink jet printing method 有权
    喷墨打印设备和喷墨打印方法

    公开(公告)号：US07712860B2

    公开(公告)日：2010-05-11

    申请号：US12188770

    申请日：2008-08-08

    申请人： Tetsuya Edamura ,  Kiichiro Takahashi ,  Minoru Teshigawara ,  Akiko Maru ,  Yoshiaki Murayama ,  Takatoshi Nakano ,  Hiroshi Taira

    发明人： Tetsuya Edamura ,  Kiichiro Takahashi ,  Minoru Teshigawara ,  Akiko Maru ,  Yoshiaki Murayama ,  Takatoshi Nakano ,  Hiroshi Taira

    IPC分类号： B41J2/205

    CPC分类号： B41J19/147

    摘要： An ink jet printing apparatus and an ink jet printing method are provided which are capable of minimizing image impairments caused by a bias of satellite positions even when an odd-numbered-pass bidirectional multi-pass printing is performed. To this end, in an odd-numbered-pass bidirectional printing, a mask pattern, in which print permitted pixels and print non-permitted pixels are arranged such a way that a percentage of pixels in which predetermined two inks are permitted to be printed by scans in different directions is higher than a percentage of pixels in which the predetermined two inks are permitted to be printed by scans in the same directions, is used. This increases the probability of satellites of the two types of the inks printed in the same pixels being printed on both sides of main dots, thus allowing a uniform image to be produced even by an odd-numbered-pass bidirectional printing.

    摘要翻译： 提供了一种喷墨打印设备和喷墨打印方法，即使当进行奇数倍双向多通打印时，也能够最小化由卫星位置的偏置引起的图像损伤。 为此，在奇数次双向打印中，其中布置打印许可像素和打印非允许像素的掩模图案被布置成使得允许通过以下方式打印预定两种墨水的像素的百分比： 使用不同方向的扫描高于允许通过相同方向的扫描来打印预定的两种墨水的像素的百分比。 这增加了打印在主要点的两侧上的相同像素中打印的两种类型的墨水的卫星的概率，从而即使通过奇数遍双向打印也可以产生均匀的图像。

    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    8.
    发明申请
    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 有权
    图像处理装置和图像处理方法

    公开(公告)号：US20100214617A1

    公开(公告)日：2010-08-26

    申请号：US12704929

    申请日：2010-02-12

    申请人： Tetsuya Edamura ,  Kiichiro Takahashi ,  Minoru Teshigawara ,  Akiko Maru ,  Takatoshi Nakano ,  Hiroshi Taira

    发明人： Tetsuya Edamura ,  Kiichiro Takahashi ,  Minoru Teshigawara ,  Akiko Maru ,  Takatoshi Nakano ,  Hiroshi Taira

    IPC分类号： H04N1/40

    CPC分类号： H04N1/52

    摘要： A region for quantization having a value lower than the value B is assumed as having little influence by Bk data on the pixels in this region. Thus, in order to prioritize the optimization of the granularity at the start of the input of GY data, the LUT having a combination of GY and gy as an input as an input is used to perform separation quantization. On the other hand, since a region having a value equal to or higher than the value B requires the use of Bk data, the LUT having only a combination of Bk and GY as an input as an input is used to perform quantization. As a result, the number of types of pieces of ink data referencing the table can be 2, thus suppressing an increase in the table size.

    摘要翻译： 假设具有低于值B的值的量化区域被Bk数据对该区域中的像素的影响很小。 因此，为了优先化GY数据输入开始时的粒度优化，将具有作为输入的GY和gy的组合的LUT用作输入，以执行分离量化。 另一方面，由于具有等于或大于值B的值的区域需要使用Bk数据，所以使用仅具有作为输入的Bk和GY的组合的LUT作为输入进行量化。 结果，参考该表的墨水数据的数量的数量可以为2，从而抑制了表格尺寸的增加。

    INKJET PRINTING APPARATUS AND PRINTING METHOD
    9.
    发明申请
    INKJET PRINTING APPARATUS AND PRINTING METHOD 有权
    喷墨打印设备和打印方法

    公开(公告)号：US20100156979A1

    公开(公告)日：2010-06-24

    申请号：US12636848

    申请日：2009-12-14

    申请人： Kiichiro Takahashi ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Akiko Maru ,  Takatoshi Nakano ,  Hiroshi Taira

    发明人： Kiichiro Takahashi ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Akiko Maru ,  Takatoshi Nakano ,  Hiroshi Taira

    IPC分类号： B41J29/38

    CPC分类号： B41J2/2103 ,  B41J2/2056 ,  H04N1/58

    摘要： In an inkjet printing method of performing printing on a printing medium by ejecting inks from a printing head configured to eject chromatic inks and an achromatic ink while moving the printing head, high-quality printing with few boundary stripes produced when the amount of inks is large is realized without complicated control being performed. To this end, print data in a boundary and the vicinity thereof is divided into unit regions, and for each unit region, performed are (A) a first reduction processing which determines a hue of the unit region based on amounts of the chromatic inks, and reduces the amount of chromatic inks applied to the unit region according to the determined hue; and (B) a second reduction processing which reduces an amount of achromatic ink based on the amount of achromatic ink applied to the unit region.

    摘要翻译： 在喷墨打印方法中，通过从打印头喷射墨，在打印头移动的同时喷射墨水和非彩色墨水，在打印介质上执行打印，当油墨量大时产生少量边界条纹的高质量打印 实现而不进行复杂的控制。 为此，将边界及其附近的打印数据划分为单位区域，对于每个单位区域，执行以下步骤：（A）第一缩小处理，其基于彩色墨水的量来确定单位区域的色调， 并且根据确定的色调减少施加到单位区域的彩色墨水的量; 和（B）第二还原处理，其基于施加到单位区域的消色差油墨的量减少无色墨水的量。