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：US06669331B2

公开(公告)日：2003-12-30

申请号：US10127471

申请日：2002-04-23

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

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

IPC分类号： B41J221

CPC分类号： B41J19/142

摘要： A print apparatus that, without significantly reducing an overall printing speed, allows a reduction in uneven densities due to the discharge time difference between black ink and color inks, which occur particularly at both ends in a scanning range and which are caused by the printing by bidirectional scanning of print heads, and enables high image-quality printing to be realized. In this print apparatus, one band is divided into plural areas in a main scanning direction, the dot numbers of black ink and color ink imparted to respective areas are counted. If there are any areas where the dot numbers of both black and color exceed respective threshold values, the area number is counted, and if the number exceeds a predetermined number, the print mode is switched from bidirectional printing to a unidirectional one, upon determining that there is a high probability of occurrence of the above-described uneven densities.

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：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。