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    Ink jet recording head and ink jet recording apparatus
    1.
    发明公开
    Ink jet recording head and ink jet recording apparatus 有权
    Tintenstrahlaufzeichnungskopf undTintenstrahlaufzeichnungsgerät

    公开(公告)号：EP1043158A2

    公开(公告)日：2000-10-11

    申请号：EP00107420.2

    申请日：2000-04-05

    申请人： CANON KABUSHIKI KAISHA

    发明人： Tajima, Hiroki, c/o Canon Kabushiki Kaisha ,  Koizumi, Yutaka, c/o Canon Kabushiki Kaisha ,  Aono, Kiyomi, c/o Canon Kabushiki Kaisha ,  Abe, Tsutomu, c/o Canon Kabushiki Kaisha ,  Okazaki, Takeshi, c/o Canon Kabushiki Kaisha ,  Omata, Kouichi, c/o Canon Kabushiki Kaisha

    IPC分类号： B41J2/14

    CPC分类号： B41J2/14024 ,  B41J2/1408 ,  B41J2202/03

    摘要： An ink jet recording head comprises a ceiling plate (4); and a substrate (5) on a base plate substrate (1,2) having on the upper face thereof a plurality of discharge energy generating elements for discharging ink. The ceiling plate (4) is provided with grooves to form a plurality of ink flow paths (11) communicated with a plurality of ink discharge ports, respectively, and a recessed portion to form a common liquid chamber (12) communicated with the plurality of ink flow paths (11). The base plate substrate (1,2) is formed by a first base plate substrate (1) and a second base plate substrate (2), and the thermal expansion coefficient of the first base plate substrate (1) directly in contact with the substrate (5) having the discharge energy generating elements arranged therefor is smaller than that of the second base plate substrate (2), and the first base plate substrate (1) is formed by material having the thermal expansion coefficient closer to that of the substrate (5) having the discharge energy generating elements arranged therefor, and at the same time, the first base plate substrate (1) is supported by the reverse side of the surface of the second base plate substrate (2).

    摘要翻译： 喷墨记录头包括顶板（4）; 以及在基板（1,2）上的基板（5），其上表面具有用于排出墨水的多个排出能量产生元件。 天花板（4）设有沟槽，分别形成与多个喷墨口连通的多个油墨流路（11），凹部形成与多个喷墨口连通的公共液室（12） 油墨流动路径（11）。 基板基板（1,2）由第一基板基板（1）和第二基板基板（2）形成，第一基板基板（1）的与基板直接接触的热膨胀系数 （5）具有比第二基板基板（2）布置的放电能量产生元件小的第一基板基板（1），并且第一基板基板（1）由热膨胀系数比基板的热膨胀系数更接近 5），其中布置有放电能量产生元件，同时第一基板基板（1）由第二基板基板（2）的表面的背面支撑。