Head driving device of liquid ejecting apparatus and method...

Details Head driving device of liquid ejecting apparatus and method... Head driving device of liquid ejecting apparatus and method...

2005-05-17

2005-05-17

Brooke, Michael S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S068000

Reexamination Certificate

active

06893104

ABSTRACT:
A head driving device includes a liquid ejecting head formed with a nozzle orifice from which a liquid droplet is ejected, a driving signal generator generating a driving signal, a pressure generating element applying pressure to liquid based on the driving signal for ejecting the liquid droplet, a charge element charged at a reference voltage lower than a drive voltage for driving the pressure generating element, and applying a bias voltage to the pressure generating element, and a discharge circuit discharging a charge on the charge element to a ground when a voltage of the charge on the charge element is equal to or higher than a first voltage which is higher than the bias voltage.

REFERENCES:
patent: 2002-264325 (2002-09-01), None

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