| 摘要 |
PROBLEM TO BE SOLVED: To prevent a plurality of switches from simultaneously becoming an on state at the time of changing over a drive signal. SOLUTION: The liquid ejection apparatus has a piezoelectric element 417 which can carry out the operation for making ink ejected, a drive signal generating part 70 which generates a first drive signal COM_A and a second drive signal COM_B, a first switch 86A which controls application of the first drive signal COM_A to the piezoelectric element 417, a second switch 86B which controls application of the second drive signal COM_B to the piezoelectric element 417, and a controller (preventing circuit 85) which makes both of the first switch 86A and the second switch 86B an off state at the time of changing over the drive signal to be applied to the piezoelectric element 417 from the first drive signal COM_A to the second drive signal COM_B. COPYRIGHT: (C)2006,JPO&NCIPI |
