Patent ID: 6350016
Filing Date: 2002-02-26
Classification: B41J

Abstract:
A liquid ejecting method using a liquid ejecting head, said method comprising:generating thermal energy sufficient to create bubbles in liquid using electrothermal transducer elements, providing ejection outlets disposed opposed to the electrothermal transducer elements, the ejection outlets being arranged at a density not less than 300 per 25.4 mm in a line, providing liquid flow paths in fluid communication with the ejection outlets, bringing the bubbles generated by the thermal energy generated by the electrothermal transducer element into communication with ambience while an internal pressure of each of the bubbles is less than an ambient pressure, ejecting droplets having volumes not more than 15Ã—10âˆ’15 m3 at a frequency not less than 7 kHz, wherein the liquid flow paths each have a height not less than 6 &mgr;m, and a distance between an upper surface and a lower surface of each of the ejection outlets is not more than one half of a minimum opening distance through a center of each of the ejection outlets.