Patent ID: 6220688
Filing Date: 2001-04-24
Classification: B41J

Abstract:
A method for manufacturing liquid jet recording heads comprising the following steps of:preparing a first substrate having a plurality of discharge energy generating devices formed thereon;preparing a second substrate having a discharge opening plate provided with a plurality of discharge openings for discharging ink, and recessed portions becoming ink flow paths conductively connected with said discharge openings, and a common liquid chamber for retaining ink for supply to each of said discharge openings, respectively;causing fine grains, applied to a joint between said second substrate and first substrate, to adhere to said joint;positioning said first substrate and second substrate so that the discharge energy generating devices of said first substrate face the recessed portions of said second substrate becoming ink flow paths, and forming said ink flow paths and common liquid chamber by joining said first substrate and second substrate together without an adhesive; andsealing the joint between said first substrate and second substrate by a sealing compound which seals a peripheral portion of a joint between said first and said second substrates, the fine grains preventing the sealing compound from entering the joint between the first and the second substrates.