Patent ID: 6056393
Filing Date: 2000-05-02
Classification: B41J

Abstract:
An ink-jet recording head, comprising:an ejecting port which ejects an ink;a substrate provided with an ejecting energy generating means which is used for ejecting ink droplets;a trenched top board provided with trenches, which constitute partly a plurality of ink paths connected to said ink ejecting port, and provided with a concavity, which constitutes partly a common liquid reservoir connected to said plurality of said ink paths; andan elastic member which presses to fix said trenched top board onto said substrate; wherein:said substrate and said trenched top board are contacted so that said ejecting energy generating means and said trenches partly forming said ink paths coincide with each other to form said ink paths; anda contacting portion of said trenched top board to be contacted with said substrate is composed of a first contacting surface of said ink paths to be contacted with said substrate and a second contacting surface of said common liquid reservoir to be contacted with said substrate,wherein said second contacting surface is inclined with respect to said first contacting surface, andwherein said trenched top board forms a substantially triangular shaped opening in a longitudinal direction along the direction of ink paths at a point of contact with the substrate, whereby the substrate contacts said first contacting surface at a first point and said second contacting surface at a second point.