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公开(公告)号：US07837283B2
公开(公告)日：2010-11-23
申请号：US11091432
申请日：2005-03-29
CPC分类号： B41J11/425
摘要： In a multipass printing system, a quality image is printed even when the number of passes is reduced to increase a printing speed. For this purpose, in a multipass printing system which repetitively alternates a printing scan, which causes the print head to eject ink from the nozzles as it moves in the main scan direction, and a feeding operation, which feeds a print medium in a sub scan direction, the feed distance of the print medium is set according to a density of an image being printed on the print medium.
摘要翻译： 在多页打印系统中，即使减少通过次数来增加打印速度，也会打印质量图像。 为此目的，在多次打印系统中，重复地交替打印扫描，这导致打印头在主扫描方向上移动时从喷嘴喷射墨;以及馈送操作，其将打印介质馈入副扫描 打印介质的进给距离根据正在打印在打印介质上的图像的浓度来设定。
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公开(公告)号：US07585040B2
公开(公告)日：2009-09-08
申请号：US11295501
申请日：2005-12-07
IPC分类号： B41J2/15
CPC分类号： B41J2/04541 , B41J2/04543 , B41J2/0458 , B41J2/04581 , B41J2002/14459
摘要： A printing apparatus divides printing elements of a printhead into blocks, time-divisionally drives the printing elements, and prints a halftone image on a printing medium in accordance with a result obtained by performing digital-halftoning for input multi-valued image data in each matrix of a predetermined size. The apparatus includes a scanner for reciprocally scanning the printhead, a conveyor for conveying the printing medium in a direction different from a scanning direction of the printhead, and a controller for printing a halftone image in each matrix. An arrayed direction of the printing elements is the convey direction of the conveyor. The controller sets a size of the block to be equal to or an integral multiple of a size of the matrix in the convey direction. The digital-halftoning increases the number of dots from a center of the matrix as a density expressed by the multi-valued image data increases.
摘要翻译： 打印设备将打印头的打印元件分成块，分时驱动打印元件，并根据通过对每个矩阵中的输入多值图像数据执行数字半色调获得的结果在打印介质上打印半色调图像 的预定尺寸。 该装置包括用于往复扫描打印头的扫描器，用于沿与打印头的扫描方向不同的方向传送打印介质的传送器，以及用于在每个矩阵中打印半色调图像的控制器。 打印元件的排列方向是输送机的输送方向。 控制器将块的大小设置为等于矩阵在传送方向上的大小的整数倍。 由多值图像数据表示的密度增加，数字半色调从矩阵的中心增加点的数量。
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公开(公告)号：US07322665B2
公开(公告)日：2008-01-29
申请号：US11296279
申请日：2005-12-08
CPC分类号： G06K15/107 , B41J2/2054 , H04N1/4057
摘要： In an inkjet printing apparatus which generates satellites droplets, problems in an image attributable to the satellites are mitigated as far as possible. For this purpose, each parameter is adjusted to satisfy a relationship such that the distance between positions of placement of a main droplet and a satellite substantially agrees with an integral multiple of the width of an index pattern. As a result, a satellite is likely to be placed in a position overlapping a dot formed by a main droplet printed in the same area of a pixel located in the vicinity of the satellite, which prevents satellites from placement blank positions where no dot should be printed. Thus, the influence of satellites is mitigated, and problems in an image attributable to satellite are reduced.
摘要翻译： 在产生卫星液滴的喷墨打印装置中，可以尽可能地减轻归因于卫星的图像中的问题。 为此目的，调整每个参数以满足关系，使得主液滴和卫星的放置位置之间的距离基本上与索引图案的宽度的整数倍相符。 结果，卫星很可能被放置在与由位于卫星附近的像素的相同区域中印刷的主液滴形成的点重叠的位置上，这防止卫星放置在不应有点的空白位置 印刷。 因此，减轻了卫星的影响，减少了卫星影像中的问题。
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公开(公告)号：US20050219279A1
公开(公告)日：2005-10-06
申请号：US11091432
申请日：2005-03-29
CPC分类号： B41J11/425
摘要： In a multipass printing system, this invention prints a quality image even when the number of passes is reduced to increase a printing speed. For this purpose, in a multipass printing system which repetitively alternates a printing scan, which causes the print head to eject ink from the nozzles as it moves in the main scan direction, and a feeding operation, which feeds a print medium in a sub-scan direction, this invention sets the feed distance of the print medium according to a density of an image being printed on the print medium.
摘要翻译： 在多重打印系统中，即使减少通过次数以提高打印速度，本发明也打印质量图像。 为此，在多重打印系统中，重复地交替打印扫描，这导致打印头在主扫描方向移动时从喷嘴喷出墨;以及进给操作，其将打印介质供给到子扫描中， 本发明根据印刷在印刷介质上的图像的浓度来设定打印介质的进给距离。
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公开(公告)号：US20060119660A1
公开(公告)日：2006-06-08
申请号：US11295501
申请日：2005-12-07
IPC分类号： B41J2/15
CPC分类号： B41J2/04541 , B41J2/04543 , B41J2/0458 , B41J2/04581 , B41J2002/14459
摘要： An inkjet printing apparatus which performs time-divisional driving poses the following problem when halftoning control by the unit matrix is performed for at least some gray levels. More specifically, the shape of a dot cluster in each unit matrix periodically changes owing to the mismatch between the unit matrix size and the unit section size of time-divisional driving. The periodical change stands out as periodical density unevenness to the eye, degrading the image quality. In order to solve this problem, according to this invention, the unit matrix size and the unit section size of time-divisional driving are determined so that unit matrices have the same shape. More specifically, the unit section size of time-divisional driving and the unit matrix size in the nozzle array direction are set to (unit section size of time-divisional driving)×n=(unit matrix size in nozzle array direction) (n is a natural number). This setting prevents periodical generation of density unevenness and achieves high image quality.
摘要翻译： 执行时分驱动的喷墨打印装置在对至少一些灰度级进行单位矩阵的半色调控制时，产生以下问题。 更具体地，由于单位矩阵尺寸和时分驱动的单位部分尺寸之间的不匹配，每个单位矩阵中的点簇的形状周期性地变化。 周期性变化突出于眼睛周期性密度不均匀，降低图像质量。 为了解决这个问题，根据本发明，确定单位矩阵尺寸和时分驱动的单位截面尺寸，使单位矩阵具有相同的形状。 更具体地说，将分时驱动的单位部分尺寸和喷嘴排列方向的单位矩阵尺寸设定为（分时驱动的单位截面尺寸）×n =（喷嘴排列方向的单位矩阵尺寸）（n为 自然数）。 该设置可以防止定期产生浓度不均匀并实现高图像质量。
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公开(公告)号：US07517052B2
公开(公告)日：2009-04-14
申请号：US11007384
申请日：2004-12-08
申请人： Satoshi Wada , Makoto Akahira , Tsuyoshi Shibata , Hiromitsu Yamaguchi , Yoshitomo Marumoto , Ryoki Jahana , Yasunori Fujimoto , Takashi Ochiai , Eri Goto
发明人： Satoshi Wada , Makoto Akahira , Tsuyoshi Shibata , Hiromitsu Yamaguchi , Yoshitomo Marumoto , Ryoki Jahana , Yasunori Fujimoto , Takashi Ochiai , Eri Goto
CPC分类号： B41J2/155 , B41J2202/20
摘要： A spliced ink-jet head including head chips, each of which is capable of discharging inks of two or more colors, and which are spliced in a staggered manner which restrains the occurrence of splice streaks, white streaks caused by deflection at ends or uneven colors attributable to different landing orders of ink droplets in spliced portions of different colors when one-pass recording is carried out. The head chips is arranged such that, in a relationship between two adjoining head chips, at least one discharge port of one head chip and one discharge port of the other head chip for the same color tone ink in end portions overlap on a line in a recording material feeding direction, while discharge ports for different color tone inks do not overlap.
摘要翻译： 一种拼接式喷墨头，其包括头部芯片，每个头部芯片能够排出两种或更多种颜色的油墨，并且以交错方式拼接，这限制了拼接条纹的出现，由端部偏转引起的白色条纹或不均匀的颜色 归因于执行单遍记录时不同颜色的拼接部分中墨滴的不同着陆顺序。 头芯片被布置成使得在两个邻接的头部芯片之间的关系中，一个头部芯片的至少一个排出口和另一个头部芯片的一个排出口用于在端部中的相同色调墨水在一条线上重叠 记录材料供给方向，而不同色调油墨的排出口不重叠。
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公开(公告)号：US07360856B2
公开(公告)日：2008-04-22
申请号：US11295561
申请日：2005-12-07
IPC分类号： B41J2/205
CPC分类号： B41J2/04581 , B41J2/04543 , B41J2/0458 , B41J2/2054
摘要： An inkjet printing apparatus which performs time-divisional driving poses the following problem for at least some gray levels when halftoning control by the unit matrix is performed. More specifically, the shape of a dot cluster in each unit matrix periodically changes due to the mismatch between the unit matrix size and the unit section size of time-divisional driving. For this reason, periodical density unevenness is generated and appears as degradation of the image quality. In order to prevent degradation of the image quality, according to this invention, image data is shifted in accordance with the unit section of time-divisional driving, or the discharge timing of ink from a printhead is shifted.
摘要翻译： 执行时分驱动的喷墨打印设备在执行由单元矩阵进行半色调控制时对于至少一些灰度级别造成以下问题。 更具体地说，由于单位矩阵尺寸与时分驱动的单位部分尺寸之间的不匹配，每个单位矩阵中的点簇的形状周期性地变化。 因此，产生周期性密度不均匀，并且显示为图像质量的劣化。 为了防止图像质量的劣化，根据本发明，图像数据根据分时驱动的单位部分移动，或者来自打印头的墨水的排出时间偏移。
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公开(公告)号：US20060125865A1
公开(公告)日：2006-06-15
申请号：US11296279
申请日：2005-12-08
CPC分类号： G06K15/107 , B41J2/2054 , H04N1/4057
摘要： In an inkjet printing apparatus which generates satellites droplets, problems in an image attributable to the satellites are mitigated as far as possible. For this purpose, each parameter is adjusted to satisfy a relationship such that the distance between positions of placement of a main droplet and a satellite substantially agrees with an integral multiple of the width of an index pattern. As a result, a satellite is likely to be placed in a position overlapping a dot formed by a main droplet printed in the same area of a pixel located in the vicinity of the satellite, which prevents satellites from placement blank positions where no dot should be printed. Thus, the influence of satellites is mitigated, and problems in an image attributable to satellite are reduced.
摘要翻译： 在产生卫星液滴的喷墨打印装置中，可以尽可能地减轻归因于卫星的图像中的问题。 为此目的，调整每个参数以满足关系，使得主液滴和卫星的放置位置之间的距离基本上与索引图案的宽度的整数倍相符。 结果，卫星很可能被放置在与由位于卫星附近的像素的相同区域中印刷的主液滴形成的点重叠的位置上，这防止卫星放置在不应有点的空白位置 印刷。 因此，减轻了卫星的影响，减少了卫星影像中的问题。
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公开(公告)号：US20060119632A1
公开(公告)日：2006-06-08
申请号：US11295561
申请日：2005-12-07
IPC分类号： B41J2/205
CPC分类号： B41J2/04581 , B41J2/04543 , B41J2/0458 , B41J2/2054
摘要： An inkjet printing apparatus which performs time-divisional driving poses the following problem for at least some gray levels when halftoning control by the unit matrix is performed. More specifically, the shape of a dot cluster in each unit matrix periodically changes due to the mismatch between the unit matrix size and the unit section size of time-divisional driving. For this reason, periodical density unevenness is generated and appears as degradation of the image quality. In order to prevent degradation of the image quality, according to this invention, image data is shifted in accordance with the unit section of time-divisional driving, or the discharge timing of ink from a printhead is shifted.
摘要翻译： 执行时分驱动的喷墨打印设备在执行由单元矩阵进行半色调控制时对于至少一些灰度级别造成以下问题。 更具体地说，由于单位矩阵尺寸与时分驱动的单位部分尺寸之间的不匹配，每个单位矩阵中的点簇的形状周期性地变化。 因此，产生周期性密度不均匀，并且显示为图像质量的劣化。 为了防止图像质量的劣化，根据本发明，图像数据根据分时驱动的单位部分移动，或者来自打印头的墨水的排出时间偏移。
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公开(公告)号：US20050128248A1
公开(公告)日：2005-06-16
申请号：US11007384
申请日：2004-12-08
申请人： Satoshi Wada , Makoto Akahira , Tsuyoshi Shibata , Hiromitsu Yamaguchi , Yoshitomo Marumoto , Ryoki Jahana , Yasunori Fujimoto , Takashi Ochiai , Eri Goto
发明人： Satoshi Wada , Makoto Akahira , Tsuyoshi Shibata , Hiromitsu Yamaguchi , Yoshitomo Marumoto , Ryoki Jahana , Yasunori Fujimoto , Takashi Ochiai , Eri Goto
CPC分类号： B41J2/155 , B41J2202/20
摘要： A spliced ink-jet head including head chips, each of which is capable of discharging inks of two or more colors, and which are spliced in a staggered manner which restrains the occurrence of splice streaks, white streaks caused by deflection at ends or uneven colors attributable to different landing orders of ink droplets in spliced portions of different colors when one-pass recording is carried out. The head chips is arranged such that, in a relationship between two adjoining head chips, at least one discharge port of one head chip and one discharge port of the other head chip for the same color tone ink in end portions overlap on a line in a recording material feeding direction, while discharge ports for different color tone inks do not overlap.
摘要翻译： 一种拼接式喷墨头，其包括头部芯片，每个头部芯片能够排出两种或更多种颜色的油墨，并且以交错方式拼接，这限制了拼接条纹的出现，由端部偏转或不均匀颜色引起的白色条纹 归因于执行单遍记录时不同颜色的拼接部分中墨滴的不同着陆顺序。 头芯片布置成使得在两个邻接的头部芯片之间的关系中，一个头部芯片的至少一个排出口和另一个头部芯片的一个排出口用于相同色调的端部部分的墨水在一条线上重叠 记录材料供给方向，而不同色调油墨的排出口不重叠。
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