| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink-jet printer capable of suppressing generation of satellite drops and, an apparatus and a method for driving an ink-jet printer recording head. SOLUTION: Two piezoelectric elements 116a, 116b are set for each ink chamber 114 corresponding to a nozzle 118. After one piezoelectric element 116a starts to discharge ink drops, the other piezoelectric element 116b is displaced while the ink chamber 114 is shrunken because of a displacement of the piezoelectric element 116a, so that the ink chamber 114 is shrunken further. Trailing of ink drops is accordingly stopped at an early stage and generation of satellite drops is restricted. Generation of the satellite drops can be restricted most effectively particularly if the piezoelectric element 116b is started to be displaced at a time point when the piezoelectric element 116a has been displaced most. |
