发明名称 Detecting a Drive Bubble Formation and Collapse
摘要 Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.
申请公布号 US2016271940(A1) 申请公布日期 2016.09.22
申请号 US201615170588 申请日期 2016.06.01
申请人 HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 发明人 Martin Eric T.;Van Brocklin Andrew L.;Maxfield David
分类号 B41J2/045 主分类号 B41J2/045
代理机构 代理人
主权项 1. An inkjet printhead, comprising: an ink chamber: a heater in the ink chamber; an impedance sensor in the ink chamber and on a top surface of the ink chamber; and a counter electrode to be connected electrically with the impendence sensor by printing fluid in the ink chamber.
地址 Houston TX US