LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS, AND METHOD OF SUPPLYING LIQUID

Abstract: a liquid ejection head including: an ejection opening; a passage in which an energy generation element is disposed; an ejection opening portion that allows communication between the ejection opening and the passage; a supply passage for allowing the liquid to flow into the passage; and an outflow passage for allowing the liquid to flow out to the outside, wherein an expression of h�p�w>1.7 is satisfied when a height of the passage is set to h, a length of the ejection opening portion is set to p, and a length of the ejection opening portion is set to w.

Inventor(s): Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yoshiyuki Nakagawa

CPC Classification: B41J2/175 (characterised by ink handling {(cleaning by driving a fluid through the nozzles to the outside thereof ; for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing )})

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