CONTROL METHOD OF LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE DEVICE

To suppress mist from being generated.SOLUTION: A control method of a liquid discharge head, which has a discharging part which includes a nozzle for discharging liquid droplets, a pressure chamber communicated with the nozzle and a driving element that gives pressure fluctuation to liquid in the pressure chamber in response to a driving signal, controls supply of the driving signal to the driving element, where the driving signal includes a first driving waveform and a second driving waveform subsequent to the first driving waveform. The driving element makes the nozzle discharge first liquid droplets, in accordance with the first driving waveform, by being supplied with the driving signal, and makes the nozzle discharge second liquid droplets in accordance with the second driving waveform so that the second liquid droplets unite with the first liquid droplets before the second liquid droplets are separated into main droplets and satellite droplets following the main droplets.SELECTED DRAWING: Figure 7 【課題】ミストの発生を抑制する。【解決手段】液滴を吐出するノズル、ノズルに連通する圧力室、及び、駆動信号に応じて圧力室内の液体に圧力変動を与える駆動素子を含む吐出部を有する液体吐出ヘッドの制御方法であって、駆動信号は、第１駆動波形、及び、第１駆動波形よりも後の第２駆動波形を含み、駆動信号の駆動素子への供給を制御し、駆動素子は、駆動信号が供給されることにより、第１駆動波形に応じて、ノズルから第１の液滴を吐出し、第２駆動波形に応じて、ノズルから第２の液滴を、第２の液滴がメイン滴とメイン滴に後行するサテライト滴とに分離する前に第１の液滴に合体するように、吐出する。【選択図】図７