Liquid Ejecting Head Driving Waveform Determination

The patent applies preliminary action by performing simulation measurements before actual measurements to predict ejection characteristics and identify waveform candidates that are likely to succeed. This preliminary simulation step filters out poor waveform candidates, so when actual measurements are performed, the liquid ejecting head is less likely to encounter ejection abnormalities that would waste ink and require recovery time.

The patent merges simulation measurement and actual measurement into a hybrid automated determination system. The simulation provides initial predictions and filters candidates, while actual measurements verify and refine the results. This combination maintains low user burden while achieving high determination accuracy by leveraging the strengths of both automated simulation and automated actual measurement.

The patent applies self-service by implementing an automated determination system where the system itself performs waveform parameter changes, simulation measurements, and actual measurements without requiring manual user intervention. The processing circuit automatically iterates through multiple waveform candidates, evaluates their ejection characteristics, and determines the optimal driving waveform, thereby maintaining high determination accuracy while eliminating user burden.

The patent applies preliminary anti-action by using simulation measurements to predict and prevent ejection abnormalities before they occur during actual measurements. The simulation identifies waveform candidates that are likely to cause ejection failures, allowing the system to avoid selecting those candidates for actual measurement. This preliminary prevention reduces the frequency of ejection abnormalities and minimizes recovery time.