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 |