| 摘要 |
PURPOSE:To improve resolution, enable sharp image recording and sharpen the frequency response of flying atomized ink by vibrating ink electrically, atomizing flying ink droplets and weakening the mutual action of adjoining ink bodies. CONSTITUTION:A negative polarity pulsed high-frequency voltage and a positive polarity pulsed high-frequency voltage are applied to a lower common electrode 5 and an upper common electrode 10 respectively. Ink 13 is incessantly shaked by a pulsed high-frequency voltage, so that flying ink droplets are atomized and the mutual action of the droplets sent flying from the adjoining second individual electrodes 7, 7 is weakened. Consequently, the resolution is improved and a sharp image is recorded. In addition, even when the surfacial tension and viscosity of the ink 13 are low, the ink droplets are readily cut by a pulsed high-frequency voltage overlapped with a signal voltage, thus improving the frequency response of flying ink 13. |
