Method and apparatus for positive pressure filling a printbar
    3.
    发明授权
    Method and apparatus for positive pressure filling a printbar 有权
    用于正压力填充印刷条的方法和装置

    公开(公告)号:US06183073B2

    公开(公告)日:2001-02-06

    申请号:US09232819

    申请日:1999-01-19

    IPC分类号: B41J2175

    CPC分类号: B41J2/17509

    摘要: A printbar, such as a full width array printbar, filling method and apparatus provides for the selective application of positive pressure to an ink container, such as an ink bag, for forcing the expulsion of ink out of the bag and into the printbar. A steady force is applied until ink appears in a window provided in a vent line adjacent to and in fluid communication with the printbar, at which time the printbar manifold is full. Additional steady pressure forces ink to flow into the ink jet channels, assuring that the channels are fully primed and functional, at which time the positive pressure can be stopped. In an alternative embodiment, a motive force provided by, for example, a solenoid or motor, preferably including a gear and cam, are included to provide the motive force for the application of pressure against the ink bag. Pressure limiting springs may be utilized to provide the desired positive pressure to the ink manifold. A reflective light sensor may be included to detect ink in the vent line window and automatically turn off the motor or solenoid, preferably after a delay to allow priming of the channels.

    摘要翻译: 诸如全宽阵列印刷条,填充方法和装置的打印条提供了对油墨容器(例如油墨袋)选择性地施加正压力,用于迫使油墨从袋中排出并进入打印棒。 施加稳定的力直到墨水出现在设置在与印刷条相邻并与印刷条流体连通的排放管线中的窗口中,此时印刷条歧管已满。 额外的稳定压力迫使墨水流入喷墨通道,确保通道完全起泡和起作用,此时可以停止正压。 在替代实施例中,由例如螺线管或马达提供的优选地包括齿轮和凸轮的动力被包括以提供用于向墨袋施加压力的动力。 压力限制弹簧可用于向油墨歧管提供所需的正压力。 可以包括反射光传感器以检测通风线窗口中的墨水,并且优选地在延迟之后自动关闭电动机或螺线管,以允许通道的启动。

    Liquid ink printer transport belt cleaner
    4.
    发明授权
    Liquid ink printer transport belt cleaner 失效
    液体墨水打印机运输皮带清洁剂

    公开(公告)号:US5526028A

    公开(公告)日:1996-06-11

    申请号:US452168

    申请日:1995-05-26

    申请人: Robert M. Rottman

    发明人: Robert M. Rottman

    摘要: A cleaning apparatus for cleaning a transport belt in a printing machine of the type in which liquid ink is deposited on a recording medium moved along a path by the transport belt. The cleaning apparatus located next to the transport belt cleans a first surface and a second surface of the transport belt when ink and/or other contaminants collect on the belt. A sensor senses when the belt needs cleaning. Interior side walls of apertures within the belt which enable vacuum transport of the recording medium through the printing machine are also cleaned. The cleaning apparatus includes a first cleaning device having a flexible web for cleaning the first surface of the transport belt and a second cleaning device having a flexible web for cleaning the second surface of the transport belt. The sensor includes a length sufficient to sense contaminants along the width of the transport belt.

    摘要翻译: 一种用于清洁印刷机中的输送带的清洁装置,其中液体墨水沉积在由输送带沿路径移动的记录介质上。 当墨和/或其它污染物收集在带上时,邻近输送带的清洁设备清洁输送带的第一表面和第二表面。 传感器检测皮带何时需要清洁。 皮带内的孔的内侧壁也能够清洁记录介质通过印刷机的真空输送。 清洁装置包括具有用于清洁传送带的第一表面的柔性网状物的第一清洁装置和具有用于清洁传送带的第二表面的柔性幅材的第二清洁装置。 传感器包括足以沿传送带的宽度感测污染物的长度。