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    Printing apparatus and print control method
    1.
    发明授权
    Printing apparatus and print control method 有权
    打印设备和打印控制方法

    公开(公告)号：US06352327B1

    公开(公告)日：2002-03-05

    申请号：US09191531

    申请日：1998-11-13

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

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

    IPC分类号： B41J2938

    CPC分类号： B41J2/17546 ,  B41J2/04543 ,  B41J2/0458

    摘要： A printing apparatus and print control method, capable of using plural types of printheads, can achieve high throughput by performing optimized print control in accordance with the type of printhead and the number of printheads used. In a case where the printing apparatus adopting such print control method includes, e.g., four printheads, and performs printing on a print medium by reciprocally scanning the printheads, detection is first performed as to whether only one printhead which discharges black ink is mounted or four printheads which respectively discharge black, yellow, cyan and magenta ink are mounted; decision is made on a printing period of the printhead based on the detected result; then decision is made on a scanning speed of the printhead based on the decided printing period; and the printhead is driven based on the decided printing period and scanning speed to perform printing.

    摘要翻译： 能够使用多种类型的打印头的打印设备和打印控制方法可以通过根据打印头的类型和使用的打印头的数量执行优化的打印控制来实现高产量。 在采用这种打印控制方法的打印设备包括例如四个打印头的情况下，并且通过往复扫描打印头在打印介质上进行打印时，首先执行检测是否仅安装一个排出黑色墨水的打印头或四个 安装分别排出黑色，黄色，青色和品红色墨水的打印头; 基于检测结果在打印头的打印周期进行判定; 然后基于所决定的打印周期对打印头的扫描速度进行判定; 并且基于所决定的打印周期和扫描速度来驱动打印头以执行打印。

    Ink-jet printing method and apparatus therefor
    2.
    发明授权
    Ink-jet printing method and apparatus therefor 失效
    喷墨打印方法及其装置

    公开(公告)号：US06305775B1

    公开(公告)日：2001-10-23

    申请号：US08881273

    申请日：1997-06-24

    申请人： Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

    发明人： Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

    IPC分类号： B41J2938

    CPC分类号： B41J2/2128 ,  G06K15/102

    摘要： Each nozzle of an ink-jet head has heaters having different heating capacities, and in accordance with the heater driven, a diameter of an ink dot formed by ink which is discharged from the nozzle is changed, thereby printing a large dot or a small dot. When multi-value image data is inputted, the multi-value image data is modulated such that a pixel having high density is printed with both the large dot and small dot. On the basis of the modulated print data, any of the heaters included in each nozzle of the ink-jet head is driven, whereby printing an image having tones based on the multi-value image data.

    摘要翻译： 喷墨头的每个喷嘴具有不同的加热能力的加热器，并且根据加热器驱动，改变从喷嘴排出的由油墨形成的墨点的直径，从而打印大点或小点 。 当输入多值图像数据时，多值图像数据被调制，使得具有高密度的像素被打印成大点和小点。 基于调制的打印数据，驱动包括在喷墨头的每个喷嘴中的任何加热器，由此基于多值图像数据打印具有色调的图像。

    Print method and apparatus
    3.
    发明授权
    Print method and apparatus 失效
    打印方法和装置

    公开(公告)号：US06328403B1

    公开(公告)日：2001-12-11

    申请号：US09307766

    申请日：1999-05-10

    申请人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

    发明人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

    IPC分类号： B41J2205

    CPC分类号： G06K15/107 ,  G06K2215/0094

    摘要： Multi-valued image data is separated into data in units of nozzle groups of the individual colors of a printhead, and each divided multi-valued image data is converted into n-valued image data consisting of a plurality of bits. Based on the n-valued image data of the corresponding colors, print codes are generated and are transmitted to a printer apparatus. The printer apparatus receives the print codes, stores them in print buffers of the corresponding colors, and generates print data based on the print codes using mask patterns set in correspondence with image data of the individual colors. The print timing in each scan of the printhead is determined in accordance with the significant bit position in the print data, and an image is printed on the basis of the print data by multi-pass printing.

    摘要翻译： 将多值图像数据以打印头的各种颜色的喷嘴组为单位分离成数据，并将每个分割的多值图像数据转换为由多个位组成的n值图像数据。 基于相应颜色的n值图像数据，生成打印代码并将其发送到打印机装置。 打印机装置接收打印代码，将它们存储在相应颜色的打印缓冲器中，并且使用根据各种颜色的图像数据设置的掩模图案，基于打印代码生成打印数据。 根据打印数据中的有效位位置来确定打印头的每次扫描中的打印定时，并且通过多遍打印基于打印数据打印图像。

    Print method and apparatus
    4.
    发明授权
    Print method and apparatus 失效
    打印方法和装置

    公开(公告)号：US6158836A

    公开(公告)日：2000-12-12

    申请号：US847984

    申请日：1997-04-22

    申请人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

    发明人： Osamu Iwasaki ,  Naoji Ohtsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori

    IPC分类号： B41J2/01 ,  B41J2/175 ,  B41J2/205 ,  B41J2/485 ,  B41M5/00 ,  G06K15/10 ,  B41J2/21 ,  B41J29/38 ,  H04N1/40

    CPC分类号： G06K15/107 ,  G06K2215/0094

    摘要： Multi-valued image data is separated into data in units of nozzle groups of the individual colors of a printhead, and each divided multi-valued image data is converted into n-valued image data consisting of a plurality of bits. Based on the n-valued image data of the corresponding colors, print codes are generated and are transmitted to a printer apparatus. The printer apparatus receives the print codes, stores them in print buffers of the corresponding colors, and generates print data based on the print codes using mask patterns set in correspondence with image data of the individual colors. The print timing in each scan of the printhead is determined in accordance with the significant bit position in the print data, and an image is printed on the basis of the print data by multi-pass printing.

    摘要翻译： 将多值图像数据以打印头的各种颜色的喷嘴组为单位分离成数据，并将每个分割的多值图像数据转换为由多个位组成的n值图像数据。 基于相应颜色的n值图像数据，生成打印代码并将其发送到打印机装置。 打印机装置接收打印代码，将它们存储在相应颜色的打印缓冲器中，并且使用根据各种颜色的图像数据设置的掩模图案，基于打印代码生成打印数据。 根据打印数据中的有效位位置来确定打印头的每次扫描中的打印定时，并且通过多遍打印基于打印数据打印图像。

    Print control method and printer
    5.
    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
    6.
    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。

    Ink-jet printing method and apparatus for printing with inks of different densities
    8.
    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：US06260938B1

    公开(公告)日：2001-07-17

    申请号：US08847740

    申请日：1997-04-22

    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： B41J2205

    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。