公开(公告)号：US20120307271A1

公开(公告)日：2012-12-06

申请号：US13477491

申请日：2012-05-22

申请人： Mitsuaki ISHITOYA ,  Takashi EBISAWA ,  Yoshiyuki OKADA

发明人： Mitsuaki ISHITOYA ,  Takashi EBISAWA ,  Yoshiyuki OKADA

IPC分类号： H04N1/60

CPC分类号： B41M5/00 ,  H04N1/6058

摘要： A specific gamut of colors extending a reproduction range of colors in a color space is set to make for any ink color belonging to the specific gamut a conversion from CMYK dot pattern data into numbers of ink drops to be discharged from an inkjet head, using as a lookup table an extended pattern table having a maximal drop number ‘7’. For ink colors belonging to a gamut of colors outside the specific gamut, a default pattern table having a maximal drop number ‘5’ is used as a lookup table for the conversion from CMYK dot pattern data into ink drop numbers.

摘要翻译： 将颜色空间中的颜色的再现范围延伸的颜色的特定色域被设置为使得属于特定色域的任何墨水颜色从CMYK点图案数据转换成从喷墨头排出的墨滴数量，使用为 查找表具有最大色数7的扩展图案表。对于属于特定色域以外的颜色色域的墨颜色，具有最大墨滴数5的默认图案表用作从CMYK点转换的查找表 将图案数据转换成墨滴数。

公开(公告)号：US20120075375A1

公开(公告)日：2012-03-29

申请号：US13238771

申请日：2011-09-21

申请人： Takashi EBISAWA

发明人： Takashi EBISAWA

IPC分类号： B41J2/205

CPC分类号： B41J2/2146 ,  B41J2/2139 ,  B41J2202/20 ,  B41J2202/21

摘要： Displacement information indicating a displacement amount of landing position in a main scanning direction of ink droplets discharged respectively from the nozzle of the head module of the same array of the line head of each color is acquired for each head module of the same array (steps S5, S7). Based on the displacement information and concentration information for each array, a color degree of an image when the discharge amount of ink droplets discharged from a nozzle of a head module of each color is not adjusted is specified for each head module of each array (step S9). A correction voltage value of a drive signal for the discharge of the nozzle of the head module of each color, which is suitable to return the specified color degree to “0”, is calculated (step S11) and each corresponding nozzle is driven by the drive signal of the correction voltage value.

摘要翻译： 针对相同阵列的每个头模块，获取指示分别从每种颜色的行头的相同阵列的头模块的喷嘴排出的墨滴的主扫描方向上的着落位置的位移量的位移信息（步骤S5 ，S7）。 基于每个阵列的位移信息和浓度信息，对于每个阵列的每个头模块指定当从每个颜色的头模块的喷嘴排出的墨滴的排出量未被调整时的图像的色度（步骤 S9）。 计算用于将适合于将指定色度返回到“0”的每种颜色的头模块的喷嘴排出的驱动信号的校正电压值（步骤S11），并且每个相应的喷嘴由 驱动信号的校正电压值。