Patent ID: 11904607
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. The drive circuit according to claim 1, wherein
the drive portion is a liquid ejecting head that includes a piezoelectric element and ejects a liquid by driving the piezoelectric element,
the drive signal includes a first drive waveform that drives the piezoelectric element so as to supply the liquid to the drive portion, a second drive waveform that drives the piezoelectric element so as to eject the liquid supplied to the drive portion, and a third drive waveform that does not drive the piezoelectric element and holds the piezoelectric element in a constant state, and
the second gate driver performs the charge control in a period during which the drive signal has the third drive waveform in the second mode.