| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head driving method capable of applying a driving wave, which is designed according to a condition, even under a condition that viscosity of a liquid to be discharged is different, for example, an environmental temperature is different, and realizing a highly efficient quasi-discharge action.SOLUTION: In a liquid discharge head driving method, a driving wave to be applied to pressure generation means 50 is formed with a pulse train including plural driving pulses each of which includes a fall element Tf that plunges a nozzle meniscus by expanding the volume of a pressure chamber 22, an element Pw that retains a state of the nozzle meniscus, and a rise element Tr that thrusts the nozzle meniscus by reducing the volume of the pressure chamber. During a quasi-discharge action during which liquid droplets that do not contribute to image formation are discharged from a nozzle 31, the duration Td between the driving pulses is adapted to the pressure resonance period Tc in the pressure chamber 22. |
