LIQUID SUPPLY MEMBER, METHOD OF MANUFACTURING THE LIQUID SUPPLY MEMBER, LIQUID EJECTION HEAD, AND METHOD OF MANUFACTURING THE LIQUID EJECTION HEAD

摘要

PROBLEM TO BE SOLVED: To provide a liquid supply member capable of preventing liquid which flows in a supply path from leaking outside.

SOLUTION: The supply path 224 and a fused portion 230 where an absorbable member 211 and a transmissive member 220 are laser-fused while surrounding the periphery of the supply path 224, are formed between the absorbable member 211 and the transmissive member 220. Regarding the transmissive member 220, the thickness of the portion corresponding to the end area 213 of the fused portion 230 positioned near the end in the longitudinal direction of the supply path 224 is relatively smaller than the thickness of the portion other than the portion corresponding to the end area 213 among the portions corresponding to the fused portion 230.

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