Ink-jet recording head

摘要

An ink-jet recording apparatus having an ink-jet recording head (7, 8) including pressure generating chambers (49) communicatively connected to a nozzle opening (52) and a reservoir (50), pressure generating means (42) for pressurising the pressure generating chambers (49), and control means for applying drive signals corresponding to print data to the recording head and for minutely vibrating meniscuses of ink in the nozzle openings to such an extent as to not eject ink droplets during a nonprint period. The control means ejects ink droplets from the nozzle openings in accordance with print data during printing operations, and minutely vibrates meniscuses of ink formed at the nozzle openings a pre-set period of time before or after the discharging of the ink droplets in a printing operation. Minutely vibrating means (23, 42, 68) are provided having a first operation mode in which the meniscuses of the nozzle openings are vibrated plural times in succession for a predetermined time period, and a drive signal for discharging ink droplets is applied to said pressure generating means after said meniscuses are placed in a state capable of discharging ink droplets.