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    • 8. 发明授权
    • Ink jet recording head cartridge
    • 喷墨记录头墨盒
    • US07070266B2
    • 2006-07-04
    • US10799019
    • 2004-03-12
    • Masashi OgawaYasuo KotakiWataru TakahashiHiromasa Anma
    • Masashi OgawaYasuo KotakiWataru TakahashiHiromasa Anma
    • B41J2/175
    • B41J2/17513
    • An ink jet recording head cartridge has a liquid container for retaining a liquid, a discharge circuit section which comprises a supply port for receiving the liquid in the liquid container, a nozzle in communication with the supply port, and a discharge energy generating element, provided in the nozzle, for discharging the liquid; and a flow path for leading the liquid from the liquid container to the discharge circuit section, wherein the flow path comprises a vertical portion extending from a portion connecting to the ink container, and a horizontal portion connecting to a lower end of the vertical portion and connecting to the supply port of the discharge circuit section, a throttle portion whose width becomes narrower in a supply direction of the liquid is formed in a portion, which connects to the vertical portion, of the horizontal portion of the flow path, and a groove shaped flow path whose width is narrower than the total width of the flow path is contiguously formed on an inner wall of the flow path from a portion connecting to the liquid container to a portion connecting to the discharge circuit section.
    • 喷墨记录头盒具有用于保持液体的液体容器,包括用于接收液体容器中的液体的供给口,与供给口连通的喷嘴和排出能量产生元件的排出回路部, 在喷嘴中,用于排出液体; 以及用于将液体从液体容器引导到排出回路部分的流动路径,其中流动路径包括从连接到墨水容器的部分延伸的垂直部分和连接到垂直部分的下端的水平部分,以及 连接到放电电路部分的供应端口,在流路的水平部分的与垂直部分连接的部分中形成有在液体的供给方向上宽度变窄的节流部分,以及沟槽 其宽度比流路的总宽度窄的形状的流路连续地形成在从连接到液体容器的部分到连接到放电电路部分的部分的流动路径的内壁上。