| 摘要 |
PCT No. PCT/JP95/01044 Sec. 371 Date Dec. 13, 1996 Sec. 102(e) Date Dec. 13, 1996 PCT Filed May 30, 1995 PCT Pub. No. WO95/34427 PCT Pub. Date Dec. 21, 1995A piezoelectric actuator is deformed from an initial condition for a time (T1) in a direction, in which an inner volume of an ink chamber is increased, to supply ink to the ink chamber. Subsequently, the piezoelectric actuator is deformed for a time (T2) at a considerably slow speed as compared with the time (T1) for the preceding supply of ink to gradually increase the inner volume of the ink chamber to supply ink to the ink chamber. During the time (T2), free oscillation having generated in ink in the piezoelectric actuator and the ink chamber attenuates. Subsequently, the piezoelectric actuator is rapidly deformed to compress the ink chamber, thereby jetting ink in the ink chamber via nozzle holes.
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