| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jetting head configured to reduce the time for determining an ink filling state and presence of air bubbles, to determined the ink filling state even a piezoelectric actuator is in operation, and to detect air bubbles in ink not in a long groove, and to provide a liquid-jetting recording device, and a liquid testing method of the liquid jetting head.SOLUTION: A liquid-jetting head chip 73 is provided with a detecting electrode 178, and a second electrostatic capacity detecting part 180b for detecting electrostatic capacity between the detecting electrode 178 and a drive electrode 78. |
