公开(公告)号：US07515318B2

公开(公告)日：2009-04-07

申请号：US10837672

申请日：2004-05-04

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

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

IPC分类号： G06F15/00 ,  G03F3/08 ,  G06K9/00

CPC分类号： H04N1/4057 ,  H04N1/40087

摘要： In an image processing method, on the basis of input image data with respect to a target pixel, independent multi-level data (g0, g1) corresponding to respective plural species of dots which are different in at least one of a density and a diameter are generated, and then data (O0, O1) relating to an amount of generation of the dots with respect to the target pixel are generated on the basis of a relationship between the generated independent multi-level data (g0, g1) corresponding to the plural species of dots. The image processing method is effective in performing design having a high degree of flexibility in proper use of a relatively high power dot (high density dot or large dot) and a relatively low power dot (low density dot or small dot) and can realize obviation or alleviation of an occurrence of granulation or an apparent frame caused due to the relatively high power dot.

摘要翻译： 在图像处理方法中，基于与目标像素相关的输入图像数据，对应于在密度和直径中的至少一个中不同的各种点的独立的多级数据（g0，g1） 基于与所生成的独立多级数据（g0，g1）之间的关系，生成关于相对于目标像素的点的生成量的数据（O0，O1） 多种点。 图像处理方法在正确使用较高功率点（高密度点或大点）和相对低功率点（低密度点或小点）时具有高度灵活性的设计是有效的，并且可以实现消除 或减轻由于相对高的功率点引起的造粒或表观框架的发生。

公开(公告)号：US06390586B1

公开(公告)日：2002-05-21

申请号：US08847741

申请日：1997-04-22

申请人： Kiichiro Takahashi ,  Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki

发明人： Kiichiro Takahashi ,  Naoji Otsuka ,  Hitoshi Nishikori ,  Osamu Iwasaki

IPC分类号： B41J29393

CPC分类号： G06K15/102 ,  B41J2/2132 ,  B41J19/142 ,  G06K2215/0094

摘要： The present invention achieves formation of a 2n-value image with data of n bits, thereby reducing the amount of image information to be transferred and processed, while improving the tonal rendition, and thereby realizing a high-quality recording system for dot matrix recording suitable for personal use. For this purpose there is disclosed an ink jet recording apparatus and a method therefor, comprising an image process unit for generating multi-value information, an identification unit for identifying that the image data are multi-value information, an identification unit for the recording head, and an analysis unit for decoding the n-bit information, and featured by effecting multi-value recording while processing the n-bit data as multi-value information.

摘要翻译： 本发明通过n位数据形成具有2n值图像的2n值图像，从而减少了要传送和处理的图像信息量，同时改善了音调再现，从而实现了适用于点阵记录的高品质记录系统 供个人使用。 为此，公开了一种喷墨记录装置及其方法，包括用于产生多值信息的图像处理单元，用于识别图像数据是多值信息的识别单元，用于记录头的识别单元 以及用于对n位信息进行解码的分析单元，其特征在于在将n位数据作为多值信息处理时进行多值记录。

公开(公告)号：US06241350B1

公开(公告)日：2001-06-05

申请号：US09072174

申请日：1998-05-05

申请人： Naoji Otsuka ,  Atsushi Arai ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

发明人： Naoji Otsuka ,  Atsushi Arai ,  Kentaro Yano ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki

IPC分类号： B41J217

CPC分类号： B41J2/1404 ,  B41J2/055 ,  B41J2/14048 ,  B41J2/14145 ,  B41J2/19 ,  B41J2002/14379

摘要： An ink jet print head includes ink ejection outlets for ejecting ink, passages communicating with the ejection outlets; a common chamber for supplying the ink to the passages; ejection energy generating elements for producing energy for ejecting the ink; an ink supply passage for supplying the ink to the common chamber; a buffering chamber disposed at a position through which a pressure wave resulting from driving of the ejection energy generating elements propagate, the buffering chamber containing a gas for attenuating the pressure wave, wherein a part of a wall constituting the buffering chamber has a gas transmitting property.

摘要翻译： 喷墨打印头包括用于喷射墨水的喷墨口，与喷射口连通的通道; 用于向通道供应墨水的公共室; 用于产生用于喷射墨水的能量的喷射能量产生元件; 用于将墨水供应到公共室的供墨通道; 缓冲室，其设置在由喷射能量产生元件的驱动产生的压力波传播的位置处，缓冲室包含用于衰减压力波的气体，其中构成缓冲室的壁的一部分具有气体传递性 。

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：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。

公开(公告)号：US06547360B2

公开(公告)日：2003-04-15

申请号：US09425989

申请日：1999-10-25

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

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

IPC分类号： B41J29393

CPC分类号： B41J2/125 ,  B41J2/2135 ,  B41J19/145 ,  B41J29/393

摘要： There is provided a printing registration method for stably performing printing registration in bi-directional scanning by a print head in a printing apparatus or printing registration between a plurality of print heads with high accuracy. In complementary printing by the bi-directional scanning by the head, a plurality of patterns are printed while printing starting timings are shifted by predetermined quantities with respect to reference dots (dots formed by forward scanning). In the pattern, an area factor defined by the dots formed by the printing is varied according to the shifting. The plurality of patterns are optically read as an average density. The timing corresponding to a point where the read average density is highest can be determined as a printing registration condition. Furthermore, an optical sensor used for the reading is located at a position where an S/N ratio is stable with respect to fluctuations in distance from the object to be read, thus achieving stable reading.

摘要翻译： 提供了一种用于在打印装置中的打印头进行双向扫描的稳定执行打印登记或者在多个打印头之间以高精度进行打印配准的打印登记方法。 在通过头部的双向扫描的互补打印中，打印开始定时相对于参考点（由正向扫描形成的点）偏移了预定量的多个图案。 在该图案中，由打印形成的点限定的面积因子根据偏移而变化。 多个图案被光学读取为平均密度。 可以将对应于读取平均密度最高的点的定时确定为打印注册条件。 此外，用于读取的光学传感器位于相对于要读取的物体的距离的波动的S / N比稳定的位置，从而实现稳定的读取。

公开(公告)号：US06532026B2

公开(公告)日：2003-03-11

申请号：US09285792

申请日：1999-04-05

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

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

IPC分类号： B41J215

CPC分类号： B41J19/145

摘要： In complementarily printing by bi-directional scannings of a head or by a plurality of print heads, first patterns and second patterns including reference dots for example, dots formed by a forward scan of the bi-directional scannings or by one of the plurality of print heads and dots each having the different direction of shifting of relative printing positions to the reference dots are printed in corresponding to the plurality of shifting amounts. These first and second patterns have the similar characteristics of a change in density. The difference is only that their characteristics in density change are inverted according to the direction of shifting. The intersection point of these two characteristics in density change is obtained as a position for adjustment where dot-formed positions match. This makes it easy to perform printing registration in a printing apparatus in the case of printing by a forward and reverse scan of a printing head or in the case of printing by means of a plurality of printing heads. In this case, operations by a user etc. are also unnecessary and are easily performed.

摘要翻译： 在通过头部或多个打印头的双向扫描的互补打印中，包括参考点的第一图案和第二图案，例如通过双向扫描的正向扫描形成的点或由多个打印头中的一个打印 对应于多个移动量，印刷各自具有相对打印位置相对于参考点的不同移动方向的头和点。 这些第一和第二图案具有与密度变化相似的特征。 不同之处在于它们的密度变化特性根据转移方向而反转。 获得这两个特征密度变化的交点作为点形位置匹配的调整位置。 这使得在通过打印头的正向和反向扫描进行打印的情况下或者通过多个打印头进行打印的情况下，可以容易地在打印装置中进行打印配准。 在这种情况下，用户等的操作也是不必要的，并且容易执行。