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    • 1. 发明授权
    • Substrate for use of ink jet head, ink jet head, ink jet cartridge, and ink jet recording apparatus
    • 用于喷墨头,喷墨头,喷墨墨盒和喷墨记录装置的基板
    • US06474788B1
    • 2002-11-05
    • US09429286
    • 1999-10-28
    • Ichiro SaitoMasanori TakenouchiYoshiyuki ImanakaOsamu IwasakiShin IshimatsuRyoji Inoue
    • Ichiro SaitoMasanori TakenouchiYoshiyuki ImanakaOsamu IwasakiShin IshimatsuRyoji Inoue
    • B41J205
    • B41J2/14129B41J2/14056B41J2/14072B41J2002/14177
    • A substrate for use of an ink jet head that constitutes an ink jet head includes a plurality of discharge ports for discharging liquid, a plurality of liquid flow paths communicated with the plurality of discharge ports, and first and second heat generating device arranged serially in the liquid flow paths in the flow path direction of the liquid flow paths for generating thermal energy which is utilized for discharging liquid in the liquid flow paths from the discharge ports, the first and second heat generating device being formed on the substrate. For this substrate, the first and second heat generating device are driven at driving frequencies of 4 kHz or more, and the first heat generating device are arranged in parallel in the direction perpendicular to the flow path direction of the liquid flow paths, and at the same time, structured with a plurality of heat generating resistive members electrically connected in series, and the second heat generating device is structured with at least one heat generating resistive member. With the structure thus arranged, this substrate makes it possible not only to stabilize liquid discharges even for the execution of a multi-valued recording, but also, provide the heat generating resistive members and liquid flow paths in higher densities.
    • 用于构成喷墨头的喷墨头的基​​板包括多个用于排出液体的排出口,与多个排出口连通的多个液体流路,以及串联地布置在该喷墨头中的第一和第二发热装置 用于产生用于从排出口排出液体流路中的液体的热能的液体流路的流路方向上的液体流路,第一和第二发热装置形成在基板上。 对于该基板,以4kHz以上的驱动频率驱动第一发热装置和第二发热装置,第一发热装置在与液体流路的流路方向垂直的方向上平行配置, 同时构造有多个串联电连接的发热电阻部件,第二发热装置由至少一个发热电阻部件构成。 利用如此布置的结构,即使为了执行多值记录,该基板也不仅可以稳定液体排出,而且可以以更高的密度提供发热电阻构件和液体流动路径。