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：US07641309B2

公开(公告)日：2010-01-05

申请号：US11204008

申请日：2005-08-16

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

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

IPC分类号： B41J2/21

CPC分类号： B41J2/21 ,  B41J2/2125 ,  B41J29/38

摘要： A present invention reduces the generation of periodic uneven print density in the image in a main scanning direction. The present invention focuses attention on a fact that, when a printing head including a plurality of nozzle arrays for ejecting different inks is used to print an image and when the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively short, the displacement of ink impact positions is smaller when compared to a case where the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively long. Thus, a dot arrangement pattern allocated to the pixel data is selected so that the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively short.

摘要翻译： 本发明减少了主扫描方向上的图像周期性不均匀印刷浓度的产生。 本发明着眼于以下事实：当使用包括用于喷射不同油墨的多个喷嘴阵列的打印头来打印图像时，并且当通过喷嘴阵列的组合打印相同的像素时，其中主要的间隔 扫描方向相对较短时，与通过主扫描方向的间隔相对较长的喷嘴阵列的组合来打印相同像素的情况相比，墨水冲击位置的位移更小。 因此，选择分配给像素数据的点布置图案，使得通过主扫描方向的间隔相对较短的喷嘴阵列的组合来打印相同的像素。

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：US07114790B2

公开(公告)日：2006-10-03

申请号：US10925036

申请日：2004-08-25

申请人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara

发明人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Osamu Iwasaki ,  Minoru Teshigawara

IPC分类号： B41J29/00

CPC分类号： B41J11/0025 ,  B41J11/0095

摘要： A printing apparatus and a print position aligning method are provided which can execute a dot position adjust value calculation mode normally and smoothly without requiring the user to make decisions or adjustments. A test pattern to check the width of a print medium is printed and is detected by an optical sensor to decide whether or not a dot position adjustment pattern can be printed. Before the dot position adjustment pattern is printed, a decision is made as to whether the print medium supplied is appropriate or not. If the print medium supplied is smaller than a size specified for the dot position adjust value calculation processing, the print medium is discharged without being printed with the dot position adjustment pattern. This eliminates a possibility of a wasteful consumption of print mediums and of contaminating the interior of the printing apparatus.

摘要翻译： 提供一种打印装置和打印位置对准方法，其可以正常且平滑地执行点位置调整值计算模式，而不需要用户作出决定或调整。 打印用于检查打印介质的宽度的测试图案，并由光学传感器检测以确定是否可以打印点位置调整图案。 在打印点位置调整图案之前，作出关于所提供的打印介质是否合适的决定。 如果提供的打印介质小于为点位置调整值计算处理指定的尺寸，则打印介质在不打印点位置调整图案的情况下被排出。 这消除了浪费打印介质的消耗和污染打印设备内部的可能性。

公开(公告)号：US20060176325A1

公开(公告)日：2006-08-10

申请号：US11275999

申请日：2006-02-09

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

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

IPC分类号： B41J2/195 ,  B41J2/01

CPC分类号： B41J2/0057 ,  B41J2/175

摘要： The present invention provides a liquid application device and an inkjet recording apparatus, which are capable of supplying liquid to a liquid room with the power consumption and/or the noise which are reduced. A pump is driven to fill a liquid retention space S with an application liquid. When the filling has been completed, the pump is stopped. Subsequently, the application liquid is applied to an application medium which has been transferred. At this time, a count in a RAM is increased. Thereafter, the determination as to whether or not the application can be carried out is made on the basis of the count and the prescribed application-performable number of sheets stored in a ROM. If it is determined that the application cannot be carried out, the filling of the application liquid is performed. If it is determined that the application can be carried out, next application is performed.

摘要翻译： 本发明提供了一种液体施加装置和喷墨记录装置，其能够将液体供应到具有降低的功率消耗和/或噪声的液体室。 泵被驱动以用施加液体填充液体滞留空间S. 填充完成后，泵停止。 随后，将涂布液施加到已经转印的涂布介质上。 此时RAM中的计数增加。 此后，基于存储在ROM中的计数和规定的应用可执行数量，确定是否可以执行应用。 如果确定不能执行应用，则执行涂布液的填充。 如果确定可以执行应用，则执行下一个应用。

公开(公告)号：US06896356B1

公开(公告)日：2005-05-24

申请号：US09675005

申请日：2000-09-29

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

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

IPC分类号： B41J5/30 ,  B41J2/01 ,  B41J2/21 ,  B41J19/14

CPC分类号： B41J19/147

摘要： A printing apparatus for forming a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the cording material, the apparatus includes changing device for changing an order of applications of the inks to be applied for printing a secondary color to a secondary color pixel area; forming device 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 raster scan direction different from the order of another, by the changing device.

摘要翻译： 一种打印设备，用于通过在打印材料上双向移动来对打印材料应用不同颜色的油墨来形成彩色图像，该打印设备包括用于改变要应用于打印的油墨的应用顺序的改变装置 次要颜色到次要颜色像素区域; 形成装置，用于形成次级颜色，同时通过改变装置将墨水的应用顺序沿着沿着另一个不同顺序的光栅扫描方向布置的多个次要彩色像素区域中的至少一个。

公开(公告)号：US20050018012A1

公开(公告)日：2005-01-27

申请号：US10864356

申请日：2004-06-10

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 ,  B41J19/14

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：US06834936B2

公开(公告)日：2004-12-28

申请号：US10435465

申请日：2003-05-12

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

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

IPC分类号： B41J221

CPC分类号： B41J19/147

摘要： Two print heads combined for each ink color are arranged symmetric to each other with respect to the scan direction and are used for a bidirectional printing. In producing secondary colors, image data is spread-processed by using a “diagonal arrangement” spread pattern to differentiate the ink application order at one of dots arranged in the raster direction from those of the other dots and thereby reduce color variations in the scan direction. Further, when image data has a half-tone, a “horizontal arrangement” spread pattern, different from the previous one, is used to perform image processing on the image data to alleviate an undesired texture. To prevent a driving load from concentrating on only one of the paired print heads, the number of times that each nozzle is driven is counted and an adjustment is made to spread the frequency of use among the two paired print heads.

摘要翻译： 对于每种墨水颜色组合的两个打印头相对于扫描方向彼此对称布置，并用于双向打印。 在生成二次色时，通过使用“对角排列”展开图案来对图像数据进行扩展处理，以便在光栅方向上排列的一个点与其他点的点之间的墨水应用顺序区别开，从而减少扫描方向的颜色变化 。 此外，当图像数据具有半色调时，使用与前一个不同的“水平排列”扩展图案来对图像数据执行图像处理以减轻不期望的纹理。 为了防止驱动负载仅集中在一个打印头中的一个上，对每个喷嘴的驱动次数进行计数，并且进行调整以扩展两个成对的打印头之间的使用频率。

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.