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    • 10. 发明授权
    • Inkjet printhead assembly
    • 喷墨打印头组件
    • US06471340B2
    • 2002-10-29
    • US09781941
    • 2001-02-12
    • Neal W. Meyer
    • Neal W. Meyer
    • B41J205
    • B41J2/1404B41J2/1412B41J2/14145B41J2002/14387B41J2002/14467B41J2202/03
    • The present invention provides an improved inkjet printhead assembly adapted to reduce and/or withstand the collapse of ink back into the firing chambers. In one embodiment, the printhead assembly includes one or more firing chambers disposed on a porous substrate. An ink supply is connected to the substrate so that ink is allowed to flow through the pores of the substrate from the ink supply to the firing chamber. Thus, a substantial amount of the energy created by the impact of ink collapsing back into the firing chamber is expended within the pores of the substrate. In another embodiment, one or more firing resistors are formed in each firing chamber, and disposed adjacent the periphery of the firing chamber out of the direct impact path of collapsing ink.
    • 本发明提供了一种改进的喷墨打印头组件,其适于减少和/或承受墨回到喷射室中的塌陷。 在一个实施例中,打印头组件包括设置在多孔基底上的一个或多个发射室。 墨水供应源连接到基底,使得墨水可以从墨水供应到喷射室流过基底的孔隙。 因此,由墨水的冲击产生的大量的能量塌陷回到烧制室中,消耗在基板的孔内。 在另一个实施例中,在每个发射室中形成一个或多个触发电阻器,并且邻近发射室的周边设置在塌陷墨水的直接冲击路径之外。