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    Printhead Assembly Having Vertically Overlapping Ink Flow Channels
    5.
    发明申请
    Printhead Assembly Having Vertically Overlapping Ink Flow Channels 失效
    具有垂直重叠油墨流通道的打印头组件

    公开(公告)号：US20080043071A1

    公开(公告)日：2008-02-21

    申请号：US11426978

    申请日：2006-06-28

    申请人： Johnnie Coffey ,  Steven Robert Komplin ,  Christopher Elliot Lingle

    发明人： Johnnie Coffey ,  Steven Robert Komplin ,  Christopher Elliot Lingle

    IPC分类号： B41J2/175

    CPC分类号： B41J2/1752

    摘要： A printhead body for mounting a micro-fluid ejection chip includes a floor having an interior side and an exterior side, the exterior side being configured for mounting at least one micro-fluid ejection chip. A plurality of body vias extends through the floor from the interior side to the exterior side. The plurality of body vias is positioned to supply ink to each micro-fluid ejection chip. A plurality of ink flow channels is formed over the interior side of the floor. The plurality of ink flow channels include at least a first ink flow channel vertically overlapping a separate and independent second ink flow channel. Each individual ink flow channel of the plurality of ink flow channels is in fluid communication with at least one body via of the plurality of body vias.

    摘要翻译： 用于安装微流体喷射芯片的打印头体包括具有内侧和外侧的底板，外侧构造成用于安装至少一个微流体喷射芯片。 多个身体通孔从内侧延伸穿过地板到外侧。 多个身体通孔被定位成向每个微流体喷射芯片供应墨水。 多个墨流道形成在地板的内侧。 多个墨水流动通道至少包括垂直重叠独立且独立的第二墨水流动通道的第一墨水流动通道。 多个墨水流动通道中的每个单独墨水流动通道与多个身体通孔的至少一个身体通路流体连通。

    Fluid height backpressure device in a system for supplying fluid to a printhead
    10.
    发明授权
    Fluid height backpressure device in a system for supplying fluid to a printhead 有权
    用于向打印头供应流体的系统中的流体高度背压装置

    公开(公告)号：US08348397B2

    公开(公告)日：2013-01-08

    申请号：US12504740

    申请日：2009-07-17

    申请人： Johnnie Coffey ,  Steven Robert Komplin ,  Guion Yuvano Lucas ,  Randal Scott Williamson

    发明人： Johnnie Coffey ,  Steven Robert Komplin ,  Guion Yuvano Lucas ,  Randal Scott Williamson

    IPC分类号： B41J2/175

    CPC分类号： B41J2/175 ,  B41J2/19

    摘要： A fluid height backpressure system includes a printhead, a fluid supply tank, a backpressure device, and an air removal device. The backpressure device responsible for supplying system backpressure includes at least one tower disposed in an upright position and having a plurality of walls defining first and second chambers for respectively communicating with the ink supply tank and a fluid supply reservoir of the printhead. The air removal device provides additional back pressure in the second chamber, allows backpressure in the system to be maintained even with an empty fluid supply tank, and also supply of ink to the fluid supply reservoir of the printhead substantially without air bubbles being introduced therein. Also, ink sensors are utilized for sensing out-of-ink/ink-low conditions and also to help establish and continue the operation of the backpressure device.

    摘要翻译： 流体高度背压系统包括打印头，流体供应箱，背压装置和排气装置。 负责提供系统背压的背压装置包括至少一个设置在直立位置的塔，并且具有限定用于分别与墨水供应罐和打印头的流体供应储存器连通的第一和第二室的多个壁。 空气去除装置在第二室中提供额外的背压，即使使用空的液体供应罐也允许系统中的背压保持，并且还将墨水供应到基本上没有引入气泡的打印头的流体供应容器。 此外，墨水传感器用于感测墨水/墨水不足的条件，并且还有助于建立和继续背压装置的操作。