Title:
LIQUID EJECTOR
Document Type and Number:
WIPO Patent Application WO/2006/068036
Kind Code:
A1
Abstract:
A liquid ejector comprising a liquid ejection head having a nozzle plate provided with a nozzle, a cavity, a pressure generating means for forming a liquid meniscus and a means for applying an ejection voltage to liquid in the nozzle, an operation control means for controlling application of a voltage for driving the pressure generating means and application of an ejection voltage by the ejection voltage applying means and a counter electrode opposing the liquid ejection head, which ejects liquid by electrostatic attraction occurring between the liquid in the nozzle to which an ejection voltage is applied by the ejection voltage applying means and the counter electrode, and pressure occurring in the nozzle. In this liquid ejector, the pressure generating means for forming a liquid meniscus forms a meniscus having a height of 1.3 or more times the radius of the nozzle in the ejection hole of the nozzle.
Inventors:
UENO NOBUHIRO (JP)
DATE MASAKAZU (JP)
DATE MASAKAZU (JP)
Application Number:
PCT/JP2005/023116
Publication Date:
June 29, 2006
Filing Date:
December 16, 2005
Export Citation:
Assignee:
KONICA MINOLTA HOLDINGS INC (JP)
UENO NOBUHIRO (JP)
DATE MASAKAZU (JP)
UENO NOBUHIRO (JP)
DATE MASAKAZU (JP)
International Classes:
B41J2/045; B41J2/06; B41J2/055
Foreign References:
| JPH05104725A | 1993-04-27 |
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