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    • 15. 发明授权
    • Liquid circulation system
    • 液体循环系统
    • US08721060B2
    • 2014-05-13
    • US13511371
    • 2010-11-26
    • Seiichi YokoyamaTomomi Igawa
    • Seiichi YokoyamaTomomi Igawa
    • B41J2/18
    • B41J2/175B41J2/17513B41J2/17596B41J2/18B41J2/19
    • A liquid circulation system includes an inkjet head formed with a common ink flow passage, an ink cartridge, a supply flow passage through which ink is supplied from the ink cartridge to an inlet of the common ink flow passage, a return flow passage through which the ink is returned from the outlet of the common ink flow passage to the ink cartridge, a tube pump sending the ink in the supply flow passage, a tube pump sending the ink in the return flow passage, a pressurization bellows unit pressurizing the ink in the supply flow passage, a pressure reduction bellows unit depressurizing the ink in the return flow passage, a pressurization regulator maintaining the inlet being a center value “+α” of a designated head value, and a differential pressure regulator by which a differential pressure of the ink between the inlet and the outlet is maintained to be “2α”.
    • 液体循环系统包括形成有公共墨水流路,墨盒,供墨流路的喷墨头,墨水从墨盒供给到普通墨水流路的入口,回流通道, 墨水从公共墨水流路的出口返回到墨盒,管式泵将墨水送到供给流路中,管泵将墨水送回回流通道,加压波纹管单元对墨中的墨加压 供给流路,减压波纹管单元使返回流路中的墨减压,将入口保持为指定头值的中心值“+α”的加压调节器,以及差压调节器, 入口和出口之间的墨水保持为“2α”。