公开(公告)号：US6145962A

公开(公告)日：2000-11-14

申请号：US311878

申请日：1999-05-14

申请人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Hidehiko Kanda

发明人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Hidehiko Kanda

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/145 ,  B41J2/205 ,  B41J2/21 ,  B41M5/00 ,  C09D11/00 ,  C09D11/30 ,  C09D11/40 ,  H04N1/40

CPC分类号： H04N1/40087 ,  B41J2/2056 ,  B41J2/2107

摘要： In the case of printing in three-value level utilizing two kinds of inks mutually different densities for one color (higher and lower density inks), it is assumed that a reflection density of a region having a predetermined area when solid print is performed only by the lower density ink, and that when solid print is performed only by the higher density ink are expressed ODt and ODn, respectively. Since the granular appearance of the ink dots is expressed in terms of reflection density of one dot, the granular appearance of a lower density ink dot at a portion of image formed only by the lower density ink dots and the granular appearance of a higher density ink dot at a portion of image formed by the higher and lower density ink dots are expressed in terms of values of ODt and (ODn-ODt) divided by the number of pixels included in the above region, respectively. Accordingly, by making the reflection density ODt to be approximately one half of the reflection density ODn, the granular appearance produced by the lower density ink dot at the highlighted portion and the granular appearance produced by the higher density ink dot at the portion where the higher density ink dots scattered in the lower density ink dots can be made substantially equal to each other. For this purpose, it is preferable that a dye concentration of the lower density ink is to be about one fourth of that of the higher density ink.

摘要翻译： 在使用两种不同浓度的油墨（高浓度和低浓度油墨）的三值油墨印刷的情况下，假设仅在实施印刷时由具有预定区域的区域的反射浓度 较低密度的墨水以及仅通过较高密度墨水进行固体印刷时分别表示为ODt和ODn。 由于墨点的粒状外观以一点的反射密度表示，所以在仅由较低密度墨点形成的图像部分处的较低密度墨点的粒状外观和较高密度墨水的粒状外观 通过高密度和低密度墨点形成的图像的一部分，以ODt和（ODn-ODt）的值分别除以上述区域中包括的像素数来表示。 因此，通过使反射密度ODt为反射密度ODn的大约一半，由突出部分的低密度墨点产生的粒状外观和高密度墨点在较高密度墨点处产生的粒状外观 可以将分散在较低密度墨点中的密度墨点基本上彼此相等。 为此，较低浓度油墨的染料浓度优选为较高浓度油墨的浓度的约四分之一。

公开(公告)号：US5926191A

公开(公告)日：1999-07-20

申请号：US961215

申请日：1997-10-30

申请人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Hidehiko Kanda

发明人： Daigoro Kanematsu ,  Naoji Otsuka ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Hidehiko Kanda

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/145 ,  B41J2/205 ,  B41J2/21 ,  B41M5/00 ,  C09D11/00 ,  C09D11/30 ,  C09D11/40 ,  H04N1/40

CPC分类号： H04N1/40087 ,  B41J2/2056 ,  B41J2/2107

摘要： In the case of printing in three-value level utilizing two kinds of inks mutually different densities for one color (higher and lower density inks), it is assumed that a reflection density of a region having a predetermined area when solid print is performed only by the lower density ink, and that when solid print is performed only by the higher density ink are expressed ODt and ODn, respectively. Since the granular appearance of the ink dots is expressed in terms of reflection density of one dot, the granular appearance of a lower density ink dot at a portion of image formed only by the lower density ink dots and the granular appearance of a higher density ink dot at a portion of image formed by the higher and lower density ink dots are expressed in terms of values of ODt and (ODn-ODt) divided by the number of pixels included the above region, respectively. Accordingly, by making the reflection density ODt to be approximately one half of the reflection density ODn, the granular appearance produced by the lower density ink dot at the highlighted portion and the granular appearance produced by the higher density ink dot at the portion where the higher density ink dots scattered in the lower density ink dots can be made substantially equal to each other. For this purpose, it is preferable that a dye concentration of the lower density ink is to be about one fourth of that of the higher density ink.

摘要翻译： 在使用两种不同浓度的油墨（高浓度和低浓度油墨）的三值油墨印刷的情况下，假设仅在实施印刷时由具有预定区域的区域的反射浓度 较低密度的墨水以及仅通过较高密度墨水进行固体印刷时分别表示为ODt和ODn。 由于墨点的粒状外观以一点的反射密度表示，所以在仅由较低密度墨点形成的图像部分处的较低密度墨点的粒状外观和较高密度墨水的粒状外观 通过高密度和低密度墨点形成的图像的一部分，分别以除了上述区域的像素数除以ODt和（ODn-ODt）的值表示。 因此，通过使反射密度ODt为反射密度ODn的大约一半，由突出部分的低密度墨点产生的粒状外观和高密度墨点在较高密度墨点处产生的粒状外观 可以将分散在较低密度墨点中的密度墨点基本上彼此相等。 为此，较低浓度油墨的染料浓度优选为较高浓度油墨的浓度的约四分之一。

公开(公告)号：US08016386B2

公开(公告)日：2011-09-13

申请号：US12580738

申请日：2009-10-16

申请人： Osamu Iwasaki ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Naoji Otsuka ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Yoshinori Nakagawa ,  Satoshi Seki

发明人： Osamu Iwasaki ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Naoji Otsuka ,  Minoru Teshigawara ,  Tetsuya Edamura ,  Yoshinori Nakagawa ,  Satoshi Seki

IPC分类号： B41J2/21 ,  B41J2/175

CPC分类号： B41J19/147

摘要： In an ink jet printing apparatus using many types of inks to execute bidirectional printing, if ejection opening rows for yellow, magenta, and cyan inks are symmetrically arranged, ejection opening rows for a black ink are arranged adjacent to the most inside ejection opening rows for the yellow ink. Thus, a difference in color between forward scanning and backward scanning is determined by a difference in coloring between the black ink and the yellow ink. In this case, a possible color drift attributed to bidirectional printing can be suppressed by selecting the inks so that the difference in coloring between the black ink and the yellow ink is smaller than that between the black ink and the other color inks.

摘要翻译： 在使用多种类型的墨水进行双向打印的喷墨打印装置中，如果用于黄色，品红色和青色墨水的排出开口行对称地布置，则用于黑色墨水的排出开口排布置成与最内侧的排出开口行相邻， 黄色的墨水。 因此，通过黑色墨水和黄色墨水之间的着色差异来确定正向扫描和反向扫描之间的颜色差异。 在这种情况下，通过选择墨水可以抑制归因于双向印刷的可能的颜色漂移，使得黑色墨水和黄色墨水之间的着色差异小于黑色墨水和其它颜色墨水之间的着色差异。

公开(公告)号：US07889394B2

公开(公告)日：2011-02-15

申请号：US11745000

申请日：2007-05-07

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Hitoshi Nishikori

IPC分类号： H04N1/40 ,  G06K15/00

CPC分类号： H04N1/52 ,  H04N1/58

摘要： An image processing apparatus for processing multilevel image data including values of respective color components includes an adding unit configured to add quantization errors to the respective values of the color components of a target pixel, an output determination unit configured to perform quantization to determine output values of the respective color components of the target pixel based on a combination of the values of the respective color components to which the quantization errors are added, and an error calculation unit configured to calculate quantization errors of the respective color components of the target pixel based on the output values of the respective color components and the values of the respective color components to which the quantization errors are added. In addition, a distribution weight determination unit is configured to determine distribution weights for the respective color components in accordance with a combination of the values of the respective color components of the target pixel, and an error diffusion unit is configured to distribute the calculated quantization errors of the respective color components of the target pixel to values of the respective color components of neighboring pixels in accordance with the determined distribution weights.

摘要翻译： 一种图像处理装置，用于处理包括各颜色分量的多值图像数据，包括：加法单元，被配置为向目标像素的颜色分量的各个值加上量化误差;输出确定单元，被配置为执行量化以确定输出值 基于添加了量化误差的各个颜色成分的值的组合的目标像素的各个颜色分量，以及错误计算单元，被配置为基于所述目标像素的各个颜色分量的量化误差来计算目标像素的各个颜色分量 各颜色分量的输出值和相加颜色分量的值相加。 另外，分发权重确定单元被配置为根据目标像素的各个颜色分量的值的组合来确定各个颜色分量的分配权重，并且误差扩散单元被配置为分配所计算的量化误差 根据确定的分布权重将目标像素的各个颜色分量的各个颜色分量的值分配给相邻像素的各个颜色分量的值。

公开(公告)号：US07455379B2

公开(公告)日：2008-11-25

申请号：US11537045

申请日：2006-09-29

申请人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

发明人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

IPC分类号： B41J2/205

CPC分类号： B41J2/2132 ,  B41J2/2125 ,  B41J19/147

摘要： A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to be applied at least at one amount for printing a secondary color to a secondary color pixel area; and a forming unit for forming the secondary color while making the order of applications of the inks to at least one of a plurality of the secondary color pixel areas arranged along a predetermined direction different from the order of another, by the changing unit.

摘要翻译： 一种打印装置，其通过在将记录头双向移动以扫描记录材料的同时对打印材料应用不同颜色的油墨形成彩色图像，包括：改变单元，用于将不同颜色的油墨的应用顺序改变为 施加至少一个量以将次要颜色印刷到次要颜色像素区域; 以及形成单元，用于形成二次颜色，同时通过改变单元使油墨应用于沿着另一个不同顺序的预定方向布置的多个二次彩色像素区域中的至少一个。

公开(公告)号：US20070019022A1

公开(公告)日：2007-01-25

申请号：US11537045

申请日：2006-09-29

申请人： NAOJI OTSUKA ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

发明人： NAOJI OTSUKA ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

IPC分类号： B41J2/205

CPC分类号： B41J2/2132 ,  B41J2/2125 ,  B41J19/147

摘要： A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to be applied at least at one amount for printing a secondary color to a secondary color pixel area; and a forming unit for forming the secondary color while making the order of applications of the inks to at least one of a plurality of the secondary color pixel areas arranged along a predetermined direction different from the order of another, by the changing unit.

摘要翻译： 一种打印装置，其通过在将记录头双向移动以扫描记录材料的同时对打印材料应用不同颜色的油墨形成彩色图像，包括：改变单元，用于将不同颜色的油墨的应用顺序改变为 施加至少一个量以将次要颜色印刷到次要颜色像素区域; 以及形成单元，用于形成二次颜色，同时通过改变单元使油墨应用于沿着另一个不同顺序的预定方向布置的多个二次彩色像素区域中的至少一个。

公开(公告)号：US07131713B2

公开(公告)日：2006-11-07

申请号：US11119705

申请日：2005-05-03

申请人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

发明人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

IPC分类号： B41J2/205

CPC分类号： B41J2/2132 ,  B41J2/2125 ,  B41J19/147

摘要： A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to be applied at least at one amount for printing a secondary color to a secondary color pixel area; and a forming unit for forming the secondary color while making the order of applications of the inks to at least one of a plurality of the secondary color pixel areas arranged along a predetermined direction different from the order of another, by the changing unit.

摘要翻译： 一种打印装置，其通过在将记录头双向移动以扫描记录材料的同时对打印材料应用不同颜色的油墨形成彩色图像，包括：改变单元，用于将不同颜色的油墨的应用顺序改变为 施加至少一个量以将次要颜色印刷到次要颜色像素区域; 以及形成单元，用于形成二次颜色，同时通过改变单元使油墨应用于沿着另一个不同顺序的预定方向布置的多个二次彩色像素区域中的至少一个。

公开(公告)号：US06899413B2

公开(公告)日：2005-05-31

申请号：US09768464

申请日：2001-01-25

申请人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

发明人： Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Toshiyuki Chikuma

IPC分类号： B41J2/205 ,  B41J2/21 ,  B41J19/14 ,  B41J19/18 ,  B41J2/145 ,  B41J2/15

CPC分类号： B41J2/2132 ,  B41J2/2125 ,  B41J19/147

摘要： A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to be applied at least at one amount for printing a secondary color to a secondary color pixel area; and a forming unit for forming the secondary color while making the order of applications of the inks to at least one of a plurality of the secondary color pixel areas arranged along a predetermined direction different from the order of another, by the changing unit.

公开(公告)号：US06764154B2

公开(公告)日：2004-07-20

申请号：US10062449

申请日：2002-02-05

申请人： Hitoshi Nishikori ,  Naoji Otsuka ,  Hitoshi Sugimoto ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Takeshi Yazawa ,  Toshiyuki Chikuma

发明人： Hitoshi Nishikori ,  Naoji Otsuka ,  Hitoshi Sugimoto ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Takeshi Yazawa ,  Toshiyuki Chikuma

IPC分类号： B41J2938

CPC分类号： B41J2/2132 ,  B41J11/42 ,  G06K15/105

摘要： An ink-jet printing apparatus and an ink-jet printing method allow the printing of an image with high quality without causing a change in ink color formed on the printing medium while keeping the printing conditions constant regardless of changing of the number of nozzles to be printed and the amount of transferring of the printing medium. This printing is performed, for example, by restricting use of the number of nozzles, which belong to a nozzle row located on an upstream side in the sub-scan direction, before changing the amount of transferring of the printing medium; and restricting use of the number of nozzles, which belong to the nozzle rows located on a downstream side in the sub-scan direction, after changing the amount of transferring of the printing medium.

摘要翻译： 喷墨打印设备和喷墨打印方法允许高质量的图像打印，而不会导致打印介质上形成的油墨颜色的变化，同时保持打印条件恒定，而与喷嘴数量的变化无关 打印和打印介质的传送量。 例如，在改变打印介质的传送量之前，例如通过限制使用属于位于副扫描方向上游侧的喷嘴列的喷嘴数量来进行打印; 并且在改变打印介质的传送量之后，限制属于位于副扫描方向下游侧的喷嘴列的喷嘴数量。

公开(公告)号：US06755506B2

公开(公告)日：2004-06-29

申请号：US10395175

申请日：2003-03-25

申请人： Hitoshi Nishikori ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Takeshi Yazawa ,  Toshiyuki Chikuma ,  Satoshi Seki

发明人： Hitoshi Nishikori ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Takeshi Yazawa ,  Toshiyuki Chikuma ,  Satoshi Seki

IPC分类号： B41J2145

CPC分类号： B41J2/15 ,  B41J2/2103

摘要： In an ink jet print head used in a serial type ink jet printing apparatus according the present invention, a portion of the nozzle column is given a wider nozzle-to-nozzle interval than those of other portions of the nozzle column so that the width in the line feed direction of each image area printed in a single printing scan by the ink jet print head is longer than a distance that a print medium is moved by one line feed. In this serial print head, the width of each image area printed by a single printing scan can be made a predetermined amount longer than the line feed distance at all times. As a result, the adjoining image areas printed by separate printing scans overlap each other at their boundary portions by a predetermined amount.

摘要翻译： 在根据本发明的串联型喷墨打印设备中使用的喷墨打印头中，喷嘴列的一部分比喷嘴列的其它部分的喷嘴间距更宽， 通过喷墨打印头在单次打印扫描中打印的每个图像区域的换行方向比打印介质通过一个换行移动的距离长。 在该串行打印头中，通过单次打印扫描打印的每个图像区域的宽度可以总是比线进给距离长的预定量。 结果，通过单独打印扫描打印的相邻图像区域在其边界部分处彼此重叠预定量。