Manufacturing method for ink jet recording head

Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet

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Details

216 27, 347 47, 347 57, 347 65, B41J 214, B41J 216, B29C 4517

Patent

active

056946848

ABSTRACT:
A manufacturing method for an ink jet recording head comprising ink ejection outlets, ink passages in fluid communication with the ink ejection outlets, an ink chamber for supplying ink to the ink passages, energy generating elements for ejecting ink, a grooved top plate having ink passage walls, an ink chamber frame for defining the ink passages and the ink chamber and the ink ejection outlets, a substrate for supporting the energy generating elements, wherein the ink passages and ink chamber are formed by coupling the grooved top plate and the substrate, the improvement residing in that the grooved top plate is molded, and after the molding, a laser machining is effected to a neighborhood of a connecting portion between the ink chamber frame and a passage wall.

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