公开(公告)号：US06874864B1

公开(公告)日：2005-04-05

申请号：US09629093

申请日：2000-07-31

申请人： Tetsuhiro Maeda ,  Hiroshi Tajika ,  Atsushi Ushiroda ,  Miyuki Fujita ,  Yuji Konno ,  Norihiro Kawatoko ,  Takayuki Ogasahara ,  Tetsuya Edamura

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

IPC分类号： B41J2/505 ,  G06K15/10 ,  B41J2/15

CPC分类号： B41J2/5058 ,  G06K15/105

摘要： An apparatus and method are provided to enable high speed printing of an image with high resolution while suppressing degradation of image quality due to white stripes and density variations. In an ink jet printing apparatus using a multi-pass printing system, the same scan print area is divided at a predetermined pitch and the printing duties of the divided areas determined by the thinning out mask pattern are set to different values. In regard to the same scan print area formed by a plurality of the main scans, the divided areas corresponding to the ends of the print head have their printing duties set smaller than those of the divided areas on the inner side of the ends of the print head.

摘要翻译： 提供了一种设备和方法，以便能够以高分辨率高速打印图像，同时抑制由于白色条纹和密度变化引起的图像质量的劣化。 在使用多通道打印系统的喷墨打印设备中，以预定间距划分相同的扫描打印区域，并且将由稀疏掩模图案确定的划分区域的打印任务设置为不同的值。 关于由多个主扫描形成的相同的扫描打印区域，与打印头的端部相对应的分割区域的打印任务设置为小于打印端部的内侧上的分割区域的打印任务 头。

公开(公告)号：US06601939B2

公开(公告)日：2003-08-05

申请号：US09940644

申请日：2001-08-29

申请人： Miyuki Fujita ,  Hiroshi Tajika ,  Atsushi Ushiroda ,  Yuji Konno ,  Norihiro Kawatoko ,  Takayuki Ogasahara ,  Tetsuya Edamura ,  Tetsuhiro Maeda ,  Atsuhiko Masuyama

发明人： Miyuki Fujita ,  Hiroshi Tajika ,  Atsushi Ushiroda ,  Yuji Konno ,  Norihiro Kawatoko ,  Takayuki Ogasahara ,  Tetsuya Edamura ,  Tetsuhiro Maeda ,  Atsuhiko Masuyama

IPC分类号： B41J2205

CPC分类号： G06K15/107

摘要： A color ink-jet head, having plural arrays of nozzles side by side in a main scan direction corresponding to different color inks, is moved to scan reciprocally. In a multi-pass recording for divided recording on an area by scanning at plural times with the head, an ink firstly landed on recording of the area determines a prioritized color influential on the color tone. Moreover, a printing medium is largely covered by the recording of first two passes. A harmful influence on a whole image by the color irregularity can reduced by suppressing the color irregularity in the two passes, therefore, the data recording ratio of the first pass to the area is set smaller than that of the second pass and thereafter. Further, for such the control, a pseudo periodical masking data arranging record prohibiting pixels and record permitting pixels in a visually agreeable state is introduced.

摘要翻译： 在与不同颜色的油墨对应的主扫描方向上并排配置有多个喷嘴阵列的彩色喷墨头被移动扫描。 在通过用头扫描多次的区域上的分割记录的多遍记录中，首先在区域的记录上着陆的墨水确定对色调有影响的优先级的颜色。 此外，打印介质大部分被前两次通过的记录所覆盖。 通过抑制两次通过中的颜色不规则性，可以减少由颜色不均匀性对整个图像的有害影响，因此，第一遍的区域的数据记录比率被设定为小于第二遍的数据记录率。 此外，对于这样的控制，引入了禁止像素的伪周期性屏蔽数据排列记录和在视觉上令人满意的状态下记录许可像素。

公开(公告)号：US06729709B2

公开(公告)日：2004-05-04

申请号：US09906684

申请日：2001-07-18

申请人： Yuji Konno ,  Hiroshi Tajika ,  Miyuki Fujita ,  Norihiro Kawatoko ,  Takayuki Ogasahara ,  Tetsuya Edamura ,  Tetsuhiro Maeda

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

IPC分类号： B41J2938

CPC分类号： B41J2/04508 ,  B41J2/04536 ,  B41J2/04563 ,  B41J2/0458

摘要： An ink-jet printing apparatus, for printing an image based on image information on a printing medium by relatively moving an ink-jet printhead, detects the temperature of the ink-jet printhead by using a head temperature detection unit and outputs it to a driving frequency determination unit. The driving frequency determination unit acquires temperature information in units of pages of image information or predetermined image areas. If the acquired temperature is equal to or higher than a predetermined temperature, the driving frequency of the ink-jet printhead is decreased when a predetermined unit of the image information is printed.

摘要翻译： 一种喷墨打印设备，用于通过相对移动喷墨打印头在打印介质上基于图像信息打印图像，通过使用头部温度检测单元来检测喷墨打印头的温度，并将其输出到驾驶 频率确定单元。 驱动频率确定单元以图像信息或预定图像区域的页面为单位获取温度信息。 如果获取的温度等于或高于预定温度，则当打印图像信息的预定单位时，喷墨打印头的驱动频率降低。

公开(公告)号：US06960036B1

公开(公告)日：2005-11-01

申请号：US09639743

申请日：2000-08-15

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

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

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/13 ,  B41J2/21 ,  B41J19/14 ,  B41J2/305

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; 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; and the entered adjustment value is stored to be reflected on the actual printing operation. 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，在主扫描方向上并排布置两个并列的喷嘴，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得到保证，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整图案; 检查打印的调整图案，并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; 输入的调整值被存储以反映在实际打印操作上。 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。

公开(公告)号：US20060044334A1

公开(公告)日：2006-03-02

申请号：US11207817

申请日：2005-08-22

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

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

IPC分类号： B41J29/38

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; 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, and the entered adjustment value is stored to be reflected on the actual printing operation. 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，在主扫描方向上并排布置两个并列的喷嘴，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得到保证，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整图案; 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，并且输入的调整值被存储以反映在实际打印操作上。 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。

公开(公告)号：US09114631B2

公开(公告)日：2015-08-25

申请号：US13407051

申请日：2012-02-28

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

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

IPC分类号： B41J29/38 ,  B41J29/393 ,  B41J2/21 ,  B41J19/14

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

摘要： With an ink jet head having for each color two parallel columns of nozzles arranged shifted by one-half the pitch, odd-numbered rasters and even-numbered rasters are printed by the two nozzle columns. The registration between the odd- and even-numbered rasters is secured during the printing to produce a high quality image. The ink ejection timing between the two raster groups is shifted by a predetermined interval to form adjustment patterns; the adjustment patterns are checked and, according to the check result, an adjustment value for the ink ejection timing between the two ink nozzle columns is entered, and the entered adjustment value is stored to be reflected on the actual printing operation. To facilitate the adjustment pattern check, the 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： 对于每个颜色的喷墨头，两个平行的喷嘴排列偏移了一半的间距，奇数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得到保证，以产生高质量的图像。 两个光栅组之间的喷墨定时偏移预定间隔以形成调整图案; 检查调整图案，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节值，并且输入的调整值被存储以反映在实际打印操作上。 为了便于调整图案检查，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。

公开(公告)号：US07057756B2

公开(公告)日：2006-06-06

申请号：US09903609

申请日：2001-07-13

申请人： Takayuki Ogasahara ,  Hiroshi Tajika ,  Miyuki Fujita ,  Yuji Konno ,  Norihiro Kawatoko ,  Tetsuya Edamura ,  Tetsuhiro Maeda ,  Atsuhiko Masuyama

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

IPC分类号： G06F15/00

CPC分类号： H04N1/40087 ,  B41J2/2056

摘要： The present invention reduces the granularity of the dots for the entire density range by optimally setting formation amounts of a low-density dot and of a high-density dot per unit area. For this purpose, the formation amounts of the low-density dot and of the high-density dot in accordance with the density level are determined in such a way that as the density level rises, the formation amount of the low-density dot is gradually increased up to a first peak amount (200%) and, after reaching the first peak, gradually decreased, and in a range of density levels higher than a predetermined density level at which the low-density dot is formed to a specified amount (200%), as the density level rises, the formation amount of the high-density dot is gradually increased up to a second peak amount (100%) smaller than the first peak amount.

摘要翻译： 本发明通过最佳地设定低密度点的形成量和每单位面积的高密度点来降低整个密度范围的点的粒度。 为此，根据浓度水平确定低密度点和高密度点的形成量，使得当密度水平升高时，低密度点的形成量逐渐地 增加到第一峰值（200％），并且在达到第一峰值后逐渐降低，并且在高于形成低密度点的预定浓度水平的浓度水平的范围内（200 ％），随着密度水平升高，高密度点的形成量逐渐增加至比第一峰值小的第二峰值（100％）。

公开(公告)号：US06557964B2

公开(公告)日：2003-05-06

申请号：US09905952

申请日：2001-07-17

申请人： Norihiro Kawatoko ,  Hiroshi Tajika ,  Miyuki Fujita ,  Yuji Konno ,  Takayuki Ogasahara ,  Tetsuya Edamura ,  Tetsuhiro Maeda

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

IPC分类号： B41J2205

CPC分类号： H04N1/4055 ,  B41J2/2132 ,  G06K15/10 ,  G06K2215/0085

摘要： The present invention provides a printing apparatus and method that can prevent the image grade from lowering. A print head is provided with a plurality of printing elements to print dots on N adjacent rasters and dots on M adjacent columns under different conditions by causing the print heads perform a plurality of (P) main-scanning operations in a main-scanning direction and transporting a printing medium at least once in a sub-scanning direction. A plurality of dot arrangement patterns used for the same level of image data are periodically changed. The plurality of dot arrangement patterns are such that within each period when the patterns are repeatedly used, the number of dots formed in each of said N rasters are equalized, whereas the number of dots formed in each of said M columns are equalized.

公开(公告)号：US20120218330A1

公开(公告)日：2012-08-30

申请号：US13407051

申请日：2012-02-28

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

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

IPC分类号： B41J29/38

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

摘要： With an ink jet head having for each color two parallel columns of nozzles arranged shifted by one-half the pitch, odd-numbered rasters and even-numbered rasters are printed by the two nozzle columns. The registration between the odd- and even-numbered rasters is secured during the printing to produce a high quality image. The ink ejection timing between the two raster groups is shifted by a predetermined interval to form adjustment patterns; the adjustment patterns are checked and, according to the check result, an adjustment value for the ink ejection timing between the two ink nozzle columns is entered, and the entered adjustment value is stored to be reflected on the actual printing operation. To facilitate the adjustment pattern check, the 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： 对于每个颜色的喷墨头，两个平行的喷嘴排列偏移了一半的间距，奇数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得到保证，以产生高质量的图像。 两个光栅组之间的喷墨定时偏移预定间隔以形成调整图案; 检查调整图案，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节值，并且输入的调整值被存储以反映在实际打印操作上。 为了便于调整图案检查，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。

公开(公告)号：US08147019B2

公开(公告)日：2012-04-03

申请号：US11207817

申请日：2005-08-22

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

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

IPC分类号： B41J29/38 ,  B41J29/393

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; 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, and the entered adjustment value is stored to be reflected on the actual printing operation. 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，在主扫描方向上并排布置两个并列的喷嘴，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得到保证，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整图案; 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，并且输入的调整值被存储以反映在实际打印操作上。 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。