发明名称 Ink-jet recording device and ink supply unit suitable for it
摘要 Ink maintained at a negative pressure state is supplied to an ink-jet recording head via an ink supply mechanism constructed as a differential pressure valve having a coil spring and a movable membrane normally contacted elastically with a valve seat by the coil spring.
申请公布号 US7350907(B2) 申请公布日期 2008.04.01
申请号 US20040819756 申请日期 2004.04.06
申请人 发明人
分类号 B41J2/175;B41J2/18 主分类号 B41J2/175
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