| 摘要 |
PURPOSE:To miniaturize an ink jet recorder, reduce the size of the recorder, and avoid the dispersion of output voltage range by making up an exciting circuit from an amplifier and low-pass filters of the same number as heads. CONSTITUTION:A single amplifier 1' is used for plural electrostrictive vibrators, and its output portion is connected in parallel with low-pass filters 2', 2'... for each electrostrictive vibrator, output level regulators 3', 3'..., and a series circuit for them. As the resonance point-varying means for the low-pass filters, condensers are used but inductance may be used. The ink jet recorder can thus be miniaturized and the cost can also be reduced. A dispersion of output voltage range can be eliminated and the resonance frequency of each filter can be varied, so that unequal resonance points caused by dispersion of the electrostrictive elements can be eliminated. |
