Head, method of driving head, and medium

A method of driving a head, the head including a nozzle plate having a nozzle configured to discharge a liquid by an energy generating element,

• the method comprising:
• generating, based on at least first data representing a first driving waveform and second data representing a second driving waveform different from the first driving waveform, a time division multiplex signal including a first portion being a part of the first driving waveform, a second portion being other part of the first driving waveform, a third portion being a part of the second driving waveform and a fourth portion being other part of the second driving waveform;
• and
• separating a first driving waveform signal representing the first driving waveform or a second driving waveform signal representing the second driving waveform from the time division multiplex signal, wherein:
• in the time division multiplex signal, the third portion being the part of the second driving waveform is aligned between the first portion being the part of the first driving waveform and the second portion being other part of the first driving waveform, and the second portion being other part of the first driving waveform is aligned between the third portion being the part of the second driving waveform and the fourth portion being other part of the second driving waveform;
• the time division multiplex signal is configured to transmit the first data and the second data via a single signal line;
• and
• the separating of the first driving waveform signal or the second driving waveform signal is performed with a sampling frequency less than a resonance frequency at the nozzle,
• the method further comprising driving the energy generating element by the first driving waveform signal or the second driving waveform signal.

A non-transitory computer-readable medium storing a program that is executable by a controller configured to control a head, the head including a nozzle plate having a nozzle configured to discharge a liquid by an energy generating element;

• the program is configured to cause the controller to execute processes of:
• generating, based on at least first data representing a first driving waveform and second data representing a second driving waveform different from the first driving waveform, a time division multiplex signal including a first portion being a part of the first driving waveform, a second portion being other part of the first driving waveform, a third portion being a part of the second driving waveform and a fourth portion being other part of the second driving waveform;
• and
• separating a first driving waveform signal representing the first driving waveform or a second driving waveform signal representing the second driving waveform from the time division multiplex signal, wherein:
• in the time division multiplex signal, the third portion being the part of the second driving waveform is aligned between the first portion being the part of the first driving waveform and the second portion being other part of the first driving waveform, and the second portion being other part of the first driving waveform is aligned between the third portion being the part of the second driving waveform and the fourth portion being other part of the second driving waveform;
• the time division multiplex signal is configured to transmit the first data and the second data via a single signal line;
• and
• the separating of the first driving waveform signal or the second driving waveform signal is performed with a sampling frequency less than a resonance frequency at the nozzle,
• the program is further configured to cause the controller to execute a process of driving the energy generating element by the first driving waveform signal or the second driving waveform signal.