Ink jet type recording head having a flow passage substrate with a
stepped configuration and recesses formed in a surface thereof
    2.
    发明授权
    Ink jet type recording head having a flow passage substrate with a stepped configuration and recesses formed in a surface thereof 失效
    具有阶梯状构造的流路基板和形成在其表面上的凹部的喷墨型记录头

    公开(公告)号:US5896149A

    公开(公告)日:1999-04-20

    申请号:US660578

    申请日:1996-06-11

    IPC分类号: B41J2/045 B41J2/055 B41J2/14

    摘要: In an ink jet type recording head, a flow passage forming substrate includes pressure generating chambers which are communicated with nozzle openings respectively, a common ink chamber for supplying ink to the pressure generating chambers; and ink supply inlets through which the pressure generating chambers are communicated with the common ink chamber. Each of the ink supply inlets is so designed that it has a narrow part, and it is gradually larger from the narrow part towards the pressure generating chamber, whereby the ink supply inlet is increased in length without changing the flow resistance, and the bonding area near the ink supply inlet is increased.

    摘要翻译: 在喷墨式记录头中,流路形成基板包括分别与喷嘴开口连通的压力发生室,用于向压力发生室供墨的公共墨室; 以及供墨入口,压力产生室通过该供墨入口与公共墨水室连通。 每个供墨入口被设计成具有窄的部分,并且从窄部分朝向压力发生室逐渐变大,从而供墨口的长度增加而不改变流动阻力,并且粘合面积 供墨口附近增加。