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    Ink-jet print method and apparatus
    2.
    发明授权
    Ink-jet print method and apparatus 失效
    喷墨打印方法和装置

    公开(公告)号：US06601938B1

    公开(公告)日：2003-08-05

    申请号：US09307765

    申请日：1999-05-10

    申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Daigoro Kanematsu ,  Hidehiko Kanda

    发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Daigoro Kanematsu ,  Hidehiko Kanda

    IPC分类号： B41J221

    CPC分类号： G06K15/102 ,  G06K2215/0094

    摘要： Print codes supplied from a host computer are received and analyzed to generate print data for the individual colors, and the generated print data are stored in print buffers corresponding to the colors. The print data corresponding to yellow ink with high lightness is expressed by binary data, and is printed by one dot per pixel by a single print scan. The print data corresponding to each of the remaining high-density (thick) inks is expressed by multi-valued data having a larger number of bits than the yellow data, and is printed by a plurality of print scans.

    摘要翻译： 接收并分析从主计算机提供的打印代码以生成各种颜色的打印数据，并且生成的打印数据被存储在与颜色对应的打印缓冲器中。 对应于高亮度黄色墨水的打印数据由二进制数据表示，并通过单次打印扫描以每像素一个点打印。 对应于每个剩余的高密度（厚）墨的打印数据由具有比黄色数据更大的位数的多值数据表示，并且通过多次打印扫描打印。

    Print control method and printer
    3.
    发明授权
    Print control method and printer 失效
    打印控制方式和打印机

    公开(公告)号：US6142600A

    公开(公告)日：2000-11-07

    申请号：US844854

    申请日：1997-04-22

    申请人： Kiichiro Takahashi ,  Naoji Ohtsuka ,  Kentaro Yano ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu ,  Hidehiko Kanda

    发明人： Kiichiro Takahashi ,  Naoji Ohtsuka ,  Kentaro Yano ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu ,  Hidehiko Kanda

    IPC分类号： B41J2/21 ,  B41J2/165 ,  B41J2/175 ,  B41J2/18 ,  B41J2/185 ,  B41J2/205

    CPC分类号： B41J2/17546 ,  B41J2/1652

    摘要： Disclosed are an inkjet printing method and an inkjet printer capable of printing high-quality images by the inkjet printing method even when ink is exchanged for ink having a different density, particularly ink having a lower density. A printer using this method identifies the type of an ink tank attached to a printhead. When the printer detects in accordance with the type of an ink tank that an ink tank is changed to another ink tank containing ink with a different density, recovery conditions for the printhead are changed in accordance with the type of the ink. Especially when an ink tank is exchanged for another ink tank containing ink with a lower density, the printer increases the number of times of suction for the printhead after the ink tank exchange and the number of times of preliminary discharge after wiping. The printer also shortens preliminary discharge intervals and increases the number of preliminary discharge times at the time of printing.

    摘要翻译： 公开了一种喷墨打印方法和喷墨打印机，即使当油墨更换为具有不同密度的油墨时，也能够通过喷墨打印方法打印高质量图像，特别是具有较低密度的油墨。 使用该方法的打印机识别附接到打印头的墨水盒的类型。 当打印机根据墨水盒的类型将墨水盒更换为另一个具有不同密度的墨水的墨盒时，打印头的恢复条件根据墨水的类型而改变。 特别是当墨水盒更换为另一个含有较低密度的墨水的墨水盒时，打印机会增加墨盒更换后的打印头的抽吸次数和擦拭后的预排出次数。 打印机还缩短了初步放电间隔，并增加了打印时的初步放电次数。

    Ink-jet printing method and apparatus for printing with inks of different densities
    5.
    发明授权
    Ink-jet printing method and apparatus for printing with inks of different densities 失效
    喷墨打印方法和用不同密度油墨打印的装置

    公开(公告)号：US06543872B2

    公开(公告)日：2003-04-08

    申请号：US09865450

    申请日：2001-05-29

    申请人： Naoji Ohtsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu ,  Hidehiko Kanda

    发明人： Naoji Ohtsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Daigoro Kanematsu ,  Hidehiko Kanda

    IPC分类号： B41J29393

    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 printhead 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 printhead once or a plurality 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。 根据用于打印操作的油墨的类型来确定打印数据的各个颜色数据的代码，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。

    Image forming apparatus and method
    6.
    发明授权
    Image forming apparatus and method 有权

    公开(公告)号：US06517192B2

    公开(公告)日：2003-02-11

    申请号：US10078345

    申请日：2002-02-21

    申请人： Takumi Kaneko ,  Toshiharu Inui ,  Daigoro Kanematsu ,  Hidehiko Kanda

    发明人： Takumi Kaneko ,  Toshiharu Inui ,  Daigoro Kanematsu ,  Hidehiko Kanda

    IPC分类号： B41J221

    CPC分类号： B41J19/142

    摘要： Disclosed is an inkjet printing apparatus for forming an image by repeatedly causing the scanning of a printhead that prints an image in a scan area using inks of a plurality of types. Residual duty, which is obtained by quantifying the mixed state of the inks used in printing the image in the scan area, is defined. The residual duty with regard to the next scan area is found from image data, the scanning direction for printing in the next scan area is decided based upon the residual duty, and the area is printed in the scanning direction that has been decided. Thus, back-and-forth scanning and unidirectional scanning are used jointly in appropriate fashion in accordance with the printed image. As a result, high-quality printing of an image becomes possible and a higher printing speed is achieved.

    Ink-jet printing apparatus and ink-jet printing method
    7.
    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：US6142604A

    公开(公告)日：2000-11-07

    申请号：US189786

    申请日：1998-11-12

    申请人： Hidehiko Kanda ,  Daigoro Kanematsu

    发明人： Hidehiko Kanda ,  Daigoro Kanematsu

    IPC分类号： B41J2/01 ,  B41J2/13 ,  B41J2/145 ,  B41J2/205 ,  B41J2/505 ,  B41J2/51 ,  G06K15/10 ,  B41J2/15 ,  B41J29/38

    CPC分类号： B41J2/5058 ,  B41J2/145 ,  B41J2/2132 ,  G06K15/107

    摘要： In divided printing method performing printing for the same printing region for a plurality of times of scanning, in order to avoid formation of banding due to density variations at a boundary in each scanning region, a predetermined nozzle width (e.g. four nozzle width) of boundary portion is set for each scanning region corresponding to a nozzle array established by dividing a plurality of nozzles (e.g. 248 nozzles) of a printing head by N (e.g. N=4). The number of times of scanning in the boundary portion is set, e.g. three times, smaller than that in region other than the boundary portion. Also, for mutually adjacent boundary portions, three times of scans of each of the adjacent boundary portions are performed simultaneously. By this, in each of the boundaries of respective scanning regions, no time difference will be caused in scan for printing respective regions.

    摘要翻译： 在分割印刷方法中，对于多次扫描进行相同印刷区域的印刷，为了避免由于在每个扫描区域的边界处的密度变化而形成条带，预定的喷嘴宽度（例如四个喷嘴宽度）的边界 对于通过将打印头的多个喷嘴（例如248个喷嘴）分割为N（例如N = 4）而建立的喷嘴阵列的每个扫描区域设定部分。 边界部分中的扫描次数被设定，例如 比边界部分以外的区域小三倍。 此外，对于相邻的边界部分，同时执行每个相邻边界部分的三次扫描。 由此，在各扫描区域的每个边界中，在用于打印各个区域的扫描中不会引起时间差。

    Ink jet printing method and ink jet recording apparatus
    9.
    发明授权
    Ink jet printing method and ink jet recording apparatus 失效
    喷墨打印方法和喷墨记录装置

    公开(公告)号：US6074052A

    公开(公告)日：2000-06-13

    申请号：US840773

    申请日：1997-04-16

    申请人： Toshiharu Inui ,  Tetsurou Inoue ,  Noribumi Koitabashi ,  Kentaro Yano ,  Masaya Uetsuki ,  Daigoro Kanematsu ,  Hidehiko Kanda ,  Yoshinori Nakajima

    发明人： Toshiharu Inui ,  Tetsurou Inoue ,  Noribumi Koitabashi ,  Kentaro Yano ,  Masaya Uetsuki ,  Daigoro Kanematsu ,  Hidehiko Kanda ,  Yoshinori Nakajima

    IPC分类号： B41J2/21 ,  B41J2/01

    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.

    摘要翻译： 一种用于喷墨打印的方法和装置使用包括用于排出第一墨的第一喷嘴组的打印头，用于排出第二墨的第二喷嘴组和用于排出可印刷性改进溶液的第三喷嘴组。 第三喷嘴组在第一喷嘴组和第二喷嘴组之间移动。 第一喷嘴组基于图像数据排出打印介质上的第一油墨以形成图像，第三喷嘴组通过另一步骤对形成在打印介质上的图像上的可印刷性改进溶液排出，并且第二喷嘴组 形成在打印介质上的图像上的第二墨水。 与油墨相比，可印刷性改进溶液对印刷介质的渗透性更高。 该方法和装置可以获得清晰的着色，高密度图像，无色差，在普通纸上具有高耐水性，运行成本低。