| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive method of an inkjet head which enables it to adjust the size and speed of an ink droplet discharged and to maintain the stability even at the high frequency discharge. Ž<P>SOLUTION: The inkjet head driving method includes a stage for carrying out a decompression drive of a membrane so that the volume of a pressure chamber may increase according to the period with which the pressure chamber expands, a stage for carrying out the pressurization drive of the membrane so that the volume of the pressure chamber may decrease according to the time when the pressure chamber converts into the contraction state from the expansion state. a stage for carrying out the decompression drive of the membrane so that the volume of the pressure chamber may increase according to the period with which the pressure chamber contracts, and a stage for carrying out the pressurization drive of the membrane so that the volume of the pressure chamber may decrease according to the time when the pressure chamber converts into the expansion state from the contraction state. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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