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17 条记录 (耗时 0.012 秒)

    Colour processing method and image forming apparatus
    1.
    发明公开
    Colour processing method and image forming apparatus 审中-公开
    Farbverarbeitungsverfahren und Bilderzeugungsvorrichtung

    公开(公告)号：EP2043353A2

    公开(公告)日：2009-04-01

    申请号：EP08165228.1

    申请日：2008-09-26

    申请人： Canon Kabushiki Kaisha

    发明人： Fan, Yingying ,  Saito, Kazuhiro ,  Ogasahara, Takayuki

    IPC分类号： H04N1/60

    CPC分类号： H04N1/6019

    摘要： Restriction information on a total colorant amount for a medium is obtained. Patches at grid points in a color space corresponding to a plurality of colorants at which the total colorant amount falls within a restriction represented by the restriction information, and a patch at a point surrounded by the patches are generated. Color values are obtained by measuring the colors of the patches printed on the medium. It is determined based on a color prediction value between the grid points whether the measured color values are appropriate, and if so, a color value at a grid point at which the total colorant amount exceeds the restriction is estimated based on the measured color values. A color separation table is created based on the measured color values and the estimated value.

    摘要翻译： 获得关于介质的总着色剂量的限制信息。 产生与多个着色剂相对应的颜色空间中的网格点处的贴片，其中总着色剂量落在由限制信息表示的限制内，并且在由贴片包围的点处产生贴片。 通过测量打印在介质上的贴片的颜色来获得颜色值。 基于网格点之间的颜色预测值确定所测量的颜色值是否合适，如果是，则基于测量的颜色值来估计总着色剂量超过限制的网格点处的颜色值。 基于测量的颜色值和估计值创建颜色分离表。

    Colour processing method and image forming apparatus
    5.
    发明公开
    Colour processing method and image forming apparatus 审中-公开
    颜色处理方法和成像设备

    公开(公告)号：EP2043353A3

    公开(公告)日：2009-07-15

    申请号：EP08165228.1

    申请日：2008-09-26

    申请人： Canon Kabushiki Kaisha

    发明人： Fan, Yingying ,  Saito, Kazuhiro ,  Ogasahara, Takayuki

    IPC分类号： H04N1/60

    CPC分类号： H04N1/6019

    摘要： Restriction information on a total colorant amount for a medium is obtained. Patches at grid points in a color space corresponding to a plurality of colorants at which the total colorant amount falls within a restriction represented by the restriction information, and a patch at a point surrounded by the patches are generated. Color values are obtained by measuring the colors of the patches printed on the medium. It is determined based on a color prediction value between the grid points whether the measured color values are appropriate, and if so, a color value at a grid point at which the total colorant amount exceeds the restriction is estimated based on the measured color values. A color separation table is created based on the measured color values and the estimated value.

    Ink-jet printing apparatus and preliminary discharge control method for the apparatus
    8.
    发明公开
    Ink-jet printing apparatus and preliminary discharge control method for the apparatus 有权
    喷墨打印设备和用于该设备的预排放控制方法

    公开(公告)号：EP1393915A2

    公开(公告)日：2004-03-03

    申请号：EP03019478.1

    申请日：2003-08-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Edamura, Tetsuya ,  Tajika, Hiroshi ,  Konno, Yuji ,  Kawatoko, Norihiro ,  Ogasahara, Takayuki ,  Masuyama, Atsuhiko ,  Maru, Akiko

    IPC分类号： B41J2/165

    CPC分类号： B41J2/16526

    摘要： In an ink-jet printing apparatus which includes a plurality of printing heads (IJH) each having an array of ink discharging elements, preliminary discharge of driving the elements of at least one printing head is performed a predetermined number of times as a unit in performing preliminary discharge of discharging ink irrelevant to printing. The printing head for which the preliminary discharge is to be performed is switched to other at least one printing head in a predetermined cycle (T 11 ). In performing the preliminary discharge and switching of the printing head are so controlled as to perform preliminary discharge a desired number of times for all the elements of the printing heads by repeating the cycle.

    摘要翻译： 在包括多个具有墨排出元件阵列的多个打印头（IJH）的喷墨打印设备中，驱动至少一个打印头的元件的预排出在执行时执行预定次数 预先排放与打印无关的排放墨水。 将要执行初步排出的打印头以预定的周期（T11）切换到其他至少一个打印头。 在执行初步排出和打印头的切换被如此控制以便通过重复该循环而对打印头的所有元件执行所需次数的预备排出。

    An adjustment method of printing positions, a printing apparatus and a printing system
    10.
    发明公开
    An adjustment method of printing positions, a printing apparatus and a printing system 有权
    Verfahren zum Einstellen der Druckpositionen，Druckgerätund Drucksystem

    公开(公告)号：EP1078771A3

    公开(公告)日：2001-04-25

    申请号：EP00307064.6

    申请日：2000-08-17

    申请人： CANON KABUSHIKI KAISHA

    发明人： Fujita, Miyuki ,  Tajika, Hiroshi ,  Konno, Yuji ,  Murakami, Shuichi ,  Kawatoko, Norihiro ,  Ogasahara, Takayuki ,  Edamura, Tetsuya ,  Maeda, Tetsuhiro

    IPC分类号： B41J2/21 ,  B41J19/14

    CPC分类号： B41J2/2135 ,  B41J2/04573 ,  B41J2/04586 ,  B41J19/145

    摘要： By using an ink jet head, which has for each color two parallel columns of nozzles arranged side by side in the main scan direction and shifted from each other by one-half the pitch at which the nozzles are arranged in each column, odd-numbered rasters and even-numbered rasters making up an image are printed by the two nozzle columns. The registration between the odd- and even-numbered rasters is secured during the printing to produce an image with high print quality. For that purpose, the ink ejection timing between the two raster groups is shifted by a predetermined interval to form a plurality of adjustment patterns (S2202); the adjustment patterns printed are checked and, according to the check result, an adjustment value for the ink ejection timing between the two ink nozzle columns is entered (S2204); and the entered adjustment value is stored to be reflected on the actual printing operation (S2206). To facilitate the adjustment pattern check, the plurality of adjustment patterns have a dot distribution with a blue noise characteristic at a resolution at which the printing apparatus can print.

    摘要翻译： 通过使用喷墨头，其对于每种颜色，两个平行的喷嘴列在主扫描方向上并排布置，并且彼此偏移了每列喷嘴排列的间距的一半，奇数 构成图像的光栅和偶数光栅由两个喷嘴列打印。 奇数和偶数光栅之间的对准在打印期间被保证以产生具有高打印质量的图像。 为此，两个光栅组之间的喷墨定时偏移预定间隔以形成多个调节图案（S2202）。 检查打印的调整图案，并且根据检查结果输入两个墨水喷嘴列之间的墨水喷射正时的调整值（S2204）。 并且输入的调整值被存储以反映在实际打印操作上（S2206）。 为了便于调整图案检查，多个调整图案具有在打印装置可以打印的分辨率下具有蓝色噪声特性的点分布。