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    • 2. 发明公开
    • Recording unit and image recording apparatus
    • Aufzeichnungseinheit unt Apparat zur Bildaufzeichnung
    • EP1186413A2
    • 2002-03-13
    • EP01121092.9
    • 2001-09-03
    • CANON KABUSHIKI KAISHA
    • Takada, Yoichi, Canon Kabushiki KaishaOzaki, Teruo, Canon Kabushiki KaishaMatsumoto, Nobuyuki, Canon Kabushiki KaishaKato, Masao, Canon Kabushiki Kaisha
    • B41J2/14
    • C09D11/40B41J2/14048B41J2/2107B41J2202/03
    • A recording unit is provided which comprises an ink housing part for housing an ink containing a coloring material and an aqueous medium, and an ink jet head part for discharging an ink droplet of the ink, wherein at least one color of the ink is a polyvalent metal salt containing ink further containing a polyvalent metal salt; the ink jet head part for discharging at least the polyvalent metal salt containing ink has a configuration comprised of a substrate having on a base body (107), a heat-generating resistor member (102) forming a heat-generating part, an electrode wire (104) electrically connected to the heat-generating resistor member, and a cavitation resistant film (112) provided on the heat-generating resistor member and the electrode wire via an insulating protection layer, and a liquid flow path communicating with a discharge port for discharging an ink droplet provided corresponding to the heat-generating part; and the cavitation resistant film comprises a layer comprised of an amorphous alloy containing Ta and a layer comprised of an amorphous body of an amorphous alloy which is rich in Ta than the amorphous alloy containing Ta or a passive matter of the amorphous body provided on the layer comprised of the amorphous alloy containing Ta.
    • 提供一种记录单元,其包括用于容纳含有着色材料和水性介质的油墨的油墨容纳部分和用于排出油墨墨滴的喷墨头部分,其中至少一种油墨是多价的 还含有多价金属盐的含金属盐的油墨; 用于排出至少含有多价金属盐的油墨的喷墨头部具有由在基体(107)上形成的基板,形成发热部的发热电阻体(102),电极线 (104),与发热电阻体电气连接的防空气膜(112),以及通过绝缘保护层设置在发热电阻体和电极线上的防气蚀膜(112),以及与排出口连通的液体流路 排出对应于发热部分设置的墨滴; 并且防气蚀膜包括由含有Ta的非晶合金和由非晶合金构成的层构成的层,所述非晶体与富含Ta的非晶合金相比富含Ta的非晶合金或者设置在层上的非晶体的被动物质 由含有Ta的非晶合金组成。