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    • 36. 发明授权
    • Ink jet printing apparatus and ink jet printing method
    • 喷墨打印设备和喷墨打印方法
    • US06951382B2
    • 2005-10-04
    • US10390729
    • 2003-03-19
    • Toshiharu InuiYoshito MizoguchiTakumi KanekoAtsushi Arai
    • Toshiharu InuiYoshito MizoguchiTakumi KanekoAtsushi Arai
    • B41J2/045B41J2/17B41J19/20B41J23/00
    • B41J2/04573B41J2/04586B41J2/17B41J19/202
    • An ink jet printing apparatus and an ink jet printing method according to the present invention suppress a variation in the density of ink in a supply channel and a print head without the need for useless recovery operations, thus always providing very reliable high-grade images. The ink jet printing apparatus carries out printing using a print head for ejecting ink. The apparatus includes a scanning unit for causing the print head to scan across a printing medium, a measuring unit for measuring a time from an end of a preceding printing operation until a start of a current printing operation, and a determining unit for determining whether or not a result of measurement executed by the measuring unit exceeds a predetermined value. The scanning unit causes the print head to carry out at least one idle scan before the start of a printing operation depending on a result of determination made by the determining unit.
    • 根据本发明的喷墨打印设备和喷墨打印方法抑制供应通道和打印头中的墨水密度的变化,而不需要无用的恢复操作,因此总是提供非常可靠的高级图像。 喷墨打印设备使用用于喷墨的打印头进行打印。 该装置包括用于使打印头扫描打印介质的扫描单元,用于测量从先前打印操作结束到当前打印操作开始的时间的测量单元,以及用于确定是否或 不是由测量单元执行的测量结果超过预定值。 扫描单元使得打印头在打印操作开始之前根据由确定单元进行的确定的结果执行至少一个空闲扫描。
    • 39. 发明授权
    • Multimode ink jet recording device in which recording mode is selected according to recording medium
    • 多模式喷墨记录装置,其中根据记录介质选择记录模式
    • US06227649B1
    • 2001-05-08
    • US08476347
    • 1995-06-07
    • Hiromitsu HirabayashiAtsushi AraiHiroshi TajikaNoribumi Koitabashi
    • Hiromitsu HirabayashiAtsushi AraiHiroshi TajikaNoribumi Koitabashi
    • B41J2145
    • H04N1/128B41J2/2132G06K15/102G06K15/105G06K2215/0082G06K2215/0094G06K2215/0097H04N1/12H04N1/1911H04N1/502
    • An ink jet recording device includes scanning means for scanning ink jet recording heads in a scanning direction, each of the recording heads having plural ink discharge generating elements and plural discharge ports associated therewith, the discharge ports being adapted to perform a recording operation within a recording area which is a total area covered by the discharge ports during one scanning operation, supplying means for supplying recording signals corresponding to the recording area to a group of the ink discharge energy generating elements, and conveying means for conveying a recording medium relative to the recording heads. A control means controls the ink jet recording heads, supplying means and conveying means so that when the control means operates in a first recording mode, a recording within the recording area is completed in a single scanning operation, and when the control means operates in a second recording mode, the recording within the recording area is completed by plural scanning operations such that the recording area is subjected to the overlapped recordings by different discharge ports. The control means selects the recording mode according to a condition relating at least to a material quality of the recording medium.
    • 喷墨记录装置包括扫描装置,用于在扫描方向上扫描喷墨记录头,每个记录头具有多个排墨产生元件和与其相关联的多个排出口,排出口适于在记录中执行记录操作 区域,其是在一次扫描操作期间由排出口覆盖的总面积的供应装置,用于将对应于记录区域的记录信号提供给一组排墨能量产生元件;以及传送装置,用于相对于记录传送记录介质 头。 控制装置控制喷墨记录头,供给装置和输送装置,使得当控制装置以第一记录模式操作时,在单次扫描操作中完成记录区内的记录,并且当控制装置在 第二记录模式,通过多次扫描操作来完成记录区域内的记录,使得记录区域通过不同的排出口进行重叠记录。 控制装置根据至少与记录介质的材质相关的条件来选择记录模式。