Ink-jet printing apparatus and ink-jet printing method
    11.
    发明授权
    Ink-jet printing apparatus and ink-jet printing method 失效
    喷墨打印设备和喷墨打印方法

    公开(公告)号:US06764154B2

    公开(公告)日:2004-07-20

    申请号:US10062449

    申请日:2002-02-05

    IPC分类号: B41J2938

    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。

    Ink jet print head and ink jet printing apparatus
    12.
    发明授权
    Ink jet print head and ink jet printing apparatus 失效
    喷墨打印头和喷墨打印设备

    公开(公告)号:US06755506B2

    公开(公告)日:2004-06-29

    申请号:US10395175

    申请日:2003-03-25

    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。

    Ink jet print apparatus, ink jet printing method, program, and computer-readable storage medium that stores the program

    公开(公告)号:US06669331B2

    公开(公告)日:2003-12-30

    申请号:US10127471

    申请日:2002-04-23

    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.

    Locating method of an optical sensor, an adjustment method of dot printing position using the optical sensor, and a printing apparatus
    14.
    发明授权
    Locating method of an optical sensor, an adjustment method of dot printing position using the optical sensor, and a printing apparatus 有权
    光学传感器的定位方法,使用光学传感器的点印刷位置的调整方法以及打印装置

    公开(公告)号:US06547360B2

    公开(公告)日:2003-04-15

    申请号:US09425989

    申请日:1999-10-25

    IPC分类号: B41J29393

    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。

    Adjustment method of dot printing positions and a printing apparatus
    15.
    发明授权
    Adjustment method of dot printing positions and a printing apparatus 有权
    点印位置的调整方法和打印装置

    公开(公告)号:US06532026B2

    公开(公告)日:2003-03-11

    申请号:US09285792

    申请日:1999-04-05

    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。

    Ink jet printing apparatus and ink jet printing method
    16.
    发明授权
    Ink jet printing apparatus and ink jet printing method 失效
    喷墨打印设备和喷墨打印方法

    公开(公告)号:US06488350B2

    公开(公告)日:2002-12-03

    申请号:US09422353

    申请日:1999-10-21

    IPC分类号: B41J2938

    摘要: The present invention reduces a difference in speed between a main drop section and a tailing section of a ejected ink droplet by heating a front heater and a rear heater provided for one nozzle with a predetermined time lag and thus, the ink dot formed from the main drop section and the tailing section on a printing medium can be more approximate to a circle. Thereby, it is possible to prevent print quality from being degraded by the tailing section separated from the main drop section of the ink droplet ejected from an ink jet printing apparatus of serial type.

    摘要翻译: 本发明通过以预定的时间延迟加热设置在一个喷嘴上的前加热器和后加热器,从而降低喷墨墨滴的主液滴部分和拖尾部分之间的速度差,因此,由主要部件形成的墨点 打印介质上的拖放部分和拖尾部分可以更接近于一个圆形。 由此,可以防止打印质量与从串联型喷墨打印装置喷射的墨滴的主液滴部分分离的拖尾部分劣化。

    Adjustment method of dot printing positions and a printing apparatus
    17.
    发明授权
    Adjustment method of dot printing positions and a printing apparatus 有权
    点印位置的调整方法和打印装置

    公开(公告)号:US06454390B1

    公开(公告)日:2002-09-24

    申请号:US09285846

    申请日:1999-04-05

    IPC分类号: B41J215

    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。

    Image processing apparatus, image processing process and program
    19.
    发明授权
    Image processing apparatus, image processing process and program 失效
    图像处理装置,图像处理过程和程序

    公开(公告)号:US08164789B2

    公开(公告)日:2012-04-24

    申请号:US12351251

    申请日:2009-01-09

    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。

    Ink jet printing apparatus
    20.
    发明授权
    Ink jet printing apparatus 失效
    喷墨打印设备

    公开(公告)号:US07621621B2

    公开(公告)日:2009-11-24

    申请号:US10864356

    申请日:2004-06-10

    IPC分类号: B41J2/21 B41J2/175

    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。