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：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。

公开(公告)号：US06454390B1

公开(公告)日：2002-09-24

申请号：US09285846

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： B41J19/147 ,  B41J2/2135 ,  B41J19/145

摘要： In a complimentary printing by bi-directional scanning of a head or by a plurality of heads, a plurality of patterns in which a print start timing is shifted by a predetermined amount are printed with respect to a reference dot, e.g. formed by the forward scan of the bi-directional scanning or by one of the plurality heads. In these patterns, an area factor by the dots formed by printing of the patterns is designed to be varied depending upon shifting amount. An average density is read from each of the plurality of patterns, optically. The timing at which the maximum one among average densities read from the patterns is obtained, can be set as the printing registration condition. Further, a processing including a coarse adjustment to a fine adjustment is performed in a series of algorithm. By these processings, printing registration between a forward and a reverse scan of a print head or printing registration between a plurality of print heads in a printing apparatus can be performed simply and with high accuracy, without operating by a user.

摘要翻译： 在通过头部或多个头部的双向扫描进行的免费打印中，打印开始定时偏移预定量的多个图案相对于参考点被打印，例如， 通过双向扫描的正向扫描或由多个头中的一个扫描形成。 在这些图案中，通过由图案的印刷形成的点的面积因子被设计为根据移动量而变化。 光学上从多个图案中的每一个读取平均密度。 可以将从图案读取的平均密度中的最大值之一获得的定时设置为打印注册条件。 此外，以一系列算法执行包括对微调的粗调的处理。 通过这些处理，可以简单且高精度地执行打印头的正向扫描和反向扫描之间的打印配准或打印设备中的多个打印头之间的打印配准，而不需要用户操作。

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：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：US06474767B1

公开(公告)日：2002-11-05

申请号：US09285844

申请日：1999-04-05

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

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

IPC分类号： B41J29393

CPC分类号： B41J2/04505 ,  B41J2/04533 ,  B41J2/04543 ,  B41J2/04553 ,  B41J2/04563 ,  B41J2/04566 ,  B41J2/0458 ,  B41J2/2135 ,  B41J19/145 ,  B41J29/393

摘要： In a complimentary printing by bi-directional scanning of a head or by a plurality of heads, a plurality of patterns in which a print start timing is shifted by a predetermined amount are printed with respect to a reference dot formed by the forward scan of the bi-directional scanning or by one of the plurality heads. In these patterns, an area factor by the dots formed by printing of the patterns is designed to be varied depending upon shifting amount. An average density is read from each of the plurality of patterns, optically. The timing at which the maximum one among average densities read from the patterns is obtained, can be set as the printing registration condition. Further, before the above reading operation, an optical sensor used for this operation is calibrated, for improving accuracies of the reading and the registrating. By these processings, printing registration between a forward and a reverse scan of a print head or printing registration between a plurality of print heads in a printing apparatus can be performed simply and with high accuracy.

摘要翻译： 在通过头部或多个头部的双向扫描进行的免费打印中，打印开始定时偏移预定量的多个图案相对于由正面扫描形成的参考点被打印 双向扫描或由多个头中的一个扫描。 在这些图案中，通过由图案的印刷形成的点的面积因子被设计为根据移动量而变化。 光学上从多个图案中的每一个读取平均密度。 可以将从图案读取的平均密度中的最大值之一获得的定时设置为打印注册条件。 此外，在上述读取操作之前，用于该操作的光学传感器被校准，以提高读取和注册的准确性。 通过这些处理，可以简单且高精度地执行打印头的正向扫描和反向扫描之间的打印配准或打印设备中的多个打印头之间的打印配准。