| 摘要 |
PROBLEM TO BE SOLVED: To suppress the unevenness of nozzle ink-droplet delivery properties between heads even when forming and outputting a drive signal with connecting two or more drive waveform signals and feeding it to an actuator. SOLUTION: Intervals T1 and T2 of the drive waveform signals WCOM1 to WCOM3 for actuating a piezoelectric-type actuator 22 are corrected based on the information of the ink-droplet delivery properties acquired from the nozzles for every head, and the drive signal COM is formed and outputted by connecting in time series two or more drive waveform signals of WCOM1 to WCOM3 with the corrected intervals T1 and T2. Thereby, the influence of the pressure change in a cavity 23 due to the connected drive waveform signals of WCOM1 to WCOM3 in front and behind becomes possible to be suppressed, and then the unevenness of the nozzle ink-droplet delivery properties between heads becomes possible to be suppressed even when connecting two or more drive waveform signals of WCOM1 to WCOM3 and feeding them to the piezoelectric-type actuator 22. COPYRIGHT: (C)2007,JPO&INPIT |
