公开(公告)号：US06637874B2

公开(公告)日：2003-10-28

申请号：US10058750

申请日：2002-01-30

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

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

IPC分类号： B41J2175

CPC分类号： B41J2/16532 ,  B41J2/14145 ,  B41J2002/14475

摘要： A liquid ejection head according to the present invention includes a single liquid supplying port to which a liquid is supplied, a plurality of liquid supplying passages having one end in communication with the liquid supplying port, a plurality of common liquid chambers that are in communication with the other ends of the liquid supplying passages, respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller than that of the liquid supplying passage that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.

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：US07564591B1

公开(公告)日：2009-07-21

申请号：US09678020

申请日：2000-10-04

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

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

IPC分类号： H04N1/405

CPC分类号： H04N1/405 ,  B41J2/2128 ,  G06K15/102 ,  H04N1/40062 ,  H04N1/4072

摘要： In a printer, when difference in ejection characteristic among nozzles appears as density non-uniformity and the way of letting the density non-uniformity appear is different depending upon kind of image, proper density correction is performed. Specifically, the kind of image to be printed is judged, and when the kind of image is a halftone image according to the judgment, a density correction table corresponding to the halftone image is selected and used to perform the density correction. Also when the kind of image is judged to be a solid image (without a portion of the halftone image), a proper table is selected similarly and used to perform the density correction.

摘要翻译： 在打印机中，当喷嘴中的喷射特性的差异出现为密度不均匀性时，出现密度不均匀的方式根据图像的种类而不同，因此进行适当的密度校正。 具体地，判断要打印的图像的类型，并且当根据判断的图像的类型是半色调图像时，选择与半色调图像相对应的浓度校正表，并用于执行浓度校正。 此外，当图像的类型被判断为实心图像（没有半色调图像的一部分）时，类似地选择适当的表并用于执行浓度校正。

公开(公告)号：US06789867B2

公开(公告)日：2004-09-14

申请号：US10062525

申请日：2002-02-05

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

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

IPC分类号： B41J2938

CPC分类号： G06K15/107 ,  B41J2/2132 ,  B41J19/142

摘要： The object of the present invention is to provide an ink jet printing apparatus which can realize both a high speed printing and a high quality printing without color deviations when each of the print areas is printed in a plurality of scans by a plurality of print heads ejecting different kinds of ink. For this purse, this invention has a controller for controlling for each print head independently widths and positions of active nozzle groups in the print heads, the active nozzle groups representing those of the plurality of nozzles in the print heads which are used for printing, wherein the controller controls the widths and positions of the active nozzle groups according to a set printing condition.

摘要翻译： 本发明的目的是提供一种喷墨打印装置，其可以在通过多个打印头喷射的多个扫描中打印每个打印区域时能够实现高速打印和高质量打印而没有颜色偏差 对于这种钱包，本发明具有控制器，用于独立地控制打印头中活动喷嘴组的宽度和位置，主动喷嘴组代表打印头中的多个喷嘴的活动喷嘴组 用于打印，其中控制器根据设定的打印条件控制主动喷嘴组的宽度和位置。

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：US06755496B2

公开(公告)日：2004-06-29

申请号：US10066768

申请日：2002-02-06

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 ,  B41J19/142

摘要： An ink jet printing apparatus including: a print unit having a polarity of ejection outlet arrays, for ejecting ink,; a scan unit for scanningly moving the print unit relative to the print medium in a main scan direction; and a feed unit for feeding the print medium relative to the print unit in a direction which is different from the main scan direction, wherein an image is formed on the print medium while repeating a scanning operation of the scanning unit and a feeding operation by the feeding unit. The apparatus also includes an information obtaining unit for obtaining image information; and a selecting unit for selecting at least one of the ejection outlet arrays to effect printing for the image data in a predetermined area, on the basis of the information obtained by the information obtain unit about image formations.

摘要翻译： 一种喷墨打印设备，包括：具有用于喷射墨水的喷射出口阵列的极性的打印单元; 扫描单元，用于沿主扫描方向相对于打印介质扫描地移动打印单元; 以及馈送单元，用于沿与主扫描方向不同的方向相对于打印单元馈送打印介质，其中在重复扫描单元的扫描操作的同时在打印介质上形成图像，并且通过 喂食单位 该装置还包括：获取图像信息的信息获取单元; 以及选择单元，用于基于由信息获取单元获得的关于图像形成的信息来选择喷射出口阵列中的至少一个，以对预定区域中的图像数据进行打印。

公开(公告)号：US06877833B2

公开(公告)日：2005-04-12

申请号：US10057901

申请日：2002-01-29

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

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

IPC分类号： B41J2/21 ,  B41S2/205

CPC分类号： B41J2/2125

摘要： A printing apparatus can reduce degradation in print quality of a printed image, notably in a highlight portion or an intermediate gradation portion, in the case where the image is printed by forming dots of a plurality of sizes. Specifically, data causing larger and smaller cyan ink droplets, respectively, to be ejected is independently subjected to a conversion to n-value process. Thus, the data for larger ink droplets is present in a portion of printing data which corresponds to the highlight portion or intermediate gradation portion of the image. During printing, larger dots are formed in this area, thereby making it difficult to perceive possible stripes caused by the offset of the positions at which smaller droplets impact a sheet.

摘要翻译： 在通过形成多个尺寸的点来打印图像的情况下，打印装置可以降低打印图像的打印质量的劣化，特别是在高亮部分或中间灰度部分。 具体地说，分别使喷出较大和较小的青色墨滴的数据被独立地转换为n值处理。 因此，用于较大墨滴的数据存在于对应于图像的高亮部分或中间灰度部分的打印数据的一部分中。 在打印期间，在该区域中形成较大的点，从而难以察觉由较小液滴撞击片材的位置的偏移引起的可能条纹。

公开(公告)号：US06832825B1

公开(公告)日：2004-12-21

申请号：US09679343

申请日：2000-10-04

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

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

IPC分类号： B41J201

CPC分类号： B41J2/2128

摘要： An apparatus and method capable of obtaining an output characteristic of the print unit and determining a correction value for an output density, without using an expensive scanner. To realize this, a nozzle array consisting of a plurality of nozzles provided in the print head is divided into a plurality of nozzle blocks [a] to [d] and each of patches is formed by using the nozzles of the same nozzle block allocated to the patch. The patches are printed in a size and shape that allows the densities of the patches to be optically detected by the density sensor. A test pattern comprising these patches is measured by the density sensor to make a density correction for each nozzle of the print head.

摘要翻译： 一种能够在不使用昂贵的扫描仪的情况下获得打印单元的输出特性并确定输出密度的校正值的装置和方法。 为了实现这一点，由设置在打印头中的多个喷嘴组成的喷嘴阵列被分成多个喷嘴块[a]至[d]，并且通过使用分配给 补丁。 贴片以尺寸和形状印刷，允许由密度传感器光学检测贴片的密度。 通过密度传感器测量包括这些贴片的测试图案，以对打印头的每个喷嘴进行浓度校正。

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：US08164789B2

公开(公告)日：2012-04-24

申请号：US12351251

申请日：2009-01-09

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： G06F5/00 ,  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。