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    Ink jet recording apparatus
    1.
    发明授权
    Ink jet recording apparatus 有权

    公开(公告)号：US10882346B2

    公开(公告)日：2021-01-05

    申请号：US16585556

    申请日：2019-09-27

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Hiroshi Taira ,  Kazuhiko Sato ,  Kazuo Suzuki ,  Mitsutoshi Nagamura ,  Satoshi Azuma ,  Tomoki Yamamuro ,  Shingo Nishioka

    IPC: B41J29/393 ,  B41J29/38

    Abstract: An ink jet recording apparatus of a line-recording-head type includes one or more recording heads using the same ink and performs recording of an image by conveying a recording medium using multiple passes through a recording region of the recording head while the recording medium is repeatedly conveyed backward and forward to speed up recording and improve image quality. A recording head is controlled to provide that an amount of ink applied to a recording medium in a case where the recording medium is conveyed at a first speed is smaller than an amount of ink applied to the recording medium in a case where the recording medium is conveyed at a second speed higher than the first speed in both of a case where the recording medium is accelerated and a case where the recording medium is decelerated.

    PRINTING APPARATUS AND PRINTING METHOD
    5.
    发明申请
    PRINTING APPARATUS AND PRINTING METHOD 有权
    印刷装置和印刷方法

    公开(公告)号：US20150022574A1

    公开(公告)日：2015-01-22

    申请号：US14331598

    申请日：2014-07-15

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Hiroaki Shirakawa ,  Kazuo Suzuki ,  Mitsutoshi Nagamura ,  Yuhei Oikawa ,  Yosuke Ishii

    IPC: B41J2/07

    CPC classification number: B41J2/07 ,  B41J2/04563 ,  B41J2/04565 ,  B41J2/0458 ,  B41J2/0459 ,  B41J2/04598 ,  B41J29/38

    Abstract: An inkjet printing apparatus which performs printing by performing scanning using a print head has a problem in that quality of an image of a ruled line is degraded when ink is not ejected for a certain period of time. To address this problem, control is performed such that power for driving the print head for unit regions including pixels having a ruled-line attribute becomes higher than power for driving the print head for unit regions which do not include the pixels having the ruled-line attribute. By this, a high-quality ruled-line image may be printed.

    Abstract translation: 通过使用打印头执行扫描来执行打印的喷墨打印设备具有这样的问题：当墨水未喷射一定时间时，格线的图像质量下降。 为了解决这个问题，执行控制，使得用于驱动包括具有格线属性的像素的单位区域的打印头的电力变得高于用于驱动不包括具有格线的像素的单位区域的打印头的功率 属性。 这样，可以打印高质量的划线图像。

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