Ink jet apparatus with voltage control unit controlling a voltag

Details Ink jet apparatus with voltage control unit controlling a voltag Ink jet apparatus with voltage control unit controlling a voltag

1990-12-07

1992-10-27

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41V 205

Patent

active

051593556

ABSTRACT:
An ink jet apparatus includes a pair of electrodes disposed on an inner wall of an ink reservoir that is provided with a nozzle. An AC voltage is applied to the electrodes to preheat the conductive ink and prevent electrolysis of the conductive ink. A DC voltage is applied to the electrodes after the ink has been preheated to evaporate the conductive ink so that the increase in ink volume jets the conductive ink from the nozzle. The AC voltage is applied within a frequency range especially effective to suppress electrolysis of the conductive ink.

REFERENCES:
patent: 3179042 (1965-04-01), Naiman
patent: 4275290 (1981-06-01), Cielo
patent: 4595937 (1986-06-01), Conta
patent: 4712172 (1987-12-01), Kiyohara

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