Patent ID: 7614719

Claim:
An inkjet printer comprising: an inkjet head including a plurality of nozzles, a plurality of pressure chambers communicating with the nozzles, respectively, a cavity unit having an ink flow passage along which ink from an ink supply source reaches to the nozzles via the pressure chambers, and an actuator that is displaced by application of a driving waveform to selectively apply ejection pressure to each pressure chamber, the inkjet head ejecting ink drops from the nozzles to perform recording on a recording medium; a first storing section that stores a plurality of kinds of basic driving waveforms prepared so as to correspond to respective groups of inkjet heads sorted on the basis of known information about ejection characteristics of the inkjet heads, as basic driving waveform data in association with identification information of the basic driving waveforms; a second storing section that stores a plurality of kinds of modification data to partially modify the basic driving waveform data in association with identification information; an information input section that receive individual waveform information, with respect to the inkjet head, which includes the identification information based on the basic driving waveform data determined according to the group to which the inkjet head belongs, and the identification information related to the modification data; and an output section that creates the driving waveform with modification of the basic driving waveform data, based on the received individual waveform information, to output the created driving waveform to the actuator.