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：US06381034B2

公开(公告)日：2002-04-30

申请号：US08883572

申请日：1997-06-26

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

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

IPC分类号： G06F1500

CPC分类号： H04N1/6022

摘要： An image processor in which an under color process is performed according to a color region to which input color image data belongs. The under color process generates a plurality of color component signals including a black component signal including a black component signal, with the color region being defined by hue. Therefore, even if input color image data includes color components other than an under color component, tonality (i.e., linearity between an input color value and an output color value) is compensated for.

摘要翻译： 根据输入彩色图像数据所属的颜色区域执行底色处理的图像处理器。 下色处理产生多个颜色分量信号，包括黑色分量信号，其中黑色分量信号包括黑色分量信号，其颜色区域由色调定义。 因此，即使输入彩色图像数据包含除了颜色分量以外的颜色分量，也可以补偿色调（即，输入颜色值和输出颜色值之间的线性度）。

公开(公告)号：US06302509B1

公开(公告)日：2001-10-16

申请号：US09059266

申请日：1998-04-14

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

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

IPC分类号： B41J2938

CPC分类号： B41J2/04533 ,  B41J2/04536 ,  B41J2/0454 ,  B41J2/04553 ,  B41J2/04565 ,  B41J2/0458 ,  B41J2/04598

摘要： In an ink-jet apparatus for forming images through use of an ink-jet head provided with a plurality of ink ejection heaters with respect to only one ejection orifice, an accurate estimation of temperature of the ink-jet head is made possible by controlling ink-ejection amount in a step-by-step manner. For this purpose, there is provided a device for counting frequency of use of the plurality of heaters within a predetermined period of time independently for each combination of the heaters for ejecting different amount of ink (in steps S1002, S1003), and a combining device for adding a correction value to each of the thus counted value on the basis of the heater driving condition, and converting the total value into the energy applied within a predetermined period (in steps S1008, S1004 and S1005). The estimation of temperature is performed by use of the thus obtained energy.

摘要翻译： 在通过使用仅设置有多个喷墨加热器的喷墨头来形成图像的喷墨装置中，只有一个喷射孔，通过控制喷墨头可以准确地估计喷墨头的温度 - 滴注量一步一步。 为此，提供了一种用于在预定时间段内对于用于喷射不同量的墨的加热器的每个组合独立地计数多个加热器的使用频率的装置（步骤S1002，S1003），以及组合装置 用于基于加热器驱动条件向每个这样计数的值添加校正值，并将总值转换为在预定时段内施加的能量（步骤S1008，S1004和S1005）。 通过使用如此获得的能量来进行温度的估计。

公开(公告)号：US06283569B1

公开(公告)日：2001-09-04

申请号：US08882033

申请日：1997-06-25

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

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

IPC分类号： B41J2205

CPC分类号： B41J2/1752 ,  B41J2/04533 ,  B41J2/0458 ,  B41J2/04593 ,  B41J2/17513 ,  B41J2/2054 ,  B41J2/2128

摘要： An ink jet recording apparatus and method for recording an image on a recording medium by ejecting ink from each of a plurality of recording elements of a recording head is provided. The apparatus includes an ink ejection amount changing unit for changing an ink ejection amount of each recording element of the recording head, a timing controller for controlling an ink ejection timing of the ink ejection amount changing unit, a modulator for modulating record data, and a controller for controlling to record an image on the recording medium by outputting the record data modulated by the modulator synchronously with an ejection timing determined by the timing controller.

摘要翻译： 提供了一种通过从记录头的多个记录元件中的每一个喷射墨水将图像记录在记录介质上的喷墨记录装置和方法。 该装置包括用于改变记录头的每个记录元件的喷墨量的喷墨量改变单元，用于控制喷墨量改变单元的喷墨定时的定时控制器，用于调制记录数据的调制器和 控制器，用于通过与由定时控制器确定的喷射定时器同步输出由调制器调制的记录数据来控制在记录介质上记录图像。

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：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。