Liquid ejection apparatus, liquid ejection method and image...

Details Liquid ejection apparatus, liquid ejection method and image... Liquid ejection apparatus, liquid ejection method and image...

2007-09-11

2009-12-08

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07628473

ABSTRACT:
The liquid ejection apparatus includes: a pressure chamber which contains liquid; a nozzle which is connected to the pressure chamber, the liquid being ejected in an ejection direction through the nozzle; a piezoelectric element which applies pressure change to the liquid in the pressure chamber, a part of the liquid protruding from the nozzle upon the pressure change and growing into a column of the liquid having a longitudinal direction parallel with the ejection direction; an electrode which induces a charge on a surface of the column of the liquid; and a voltage control device which controls voltage applied to the electrode, the voltage control device reversing polarity of the electrode when the column of the liquid has grown to a prescribed length.

REFERENCES:
patent: 2003/0156169 (2003-08-01), Martin et al.
patent: 2007/0273731 (2007-11-01), Young et al.
patent: 2004-66531 (2004-03-01), None

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