Patent ID: 7332209
Filing Date: 2008-02-19
Classification: B32B,Y10T

Abstract:
1. A laminated print head structure, comprising: a plurality of thin plate members; and adhesive which bonds the plurality of thin plate members in layers, wherein at least one of the plurality of thin plate members has at least one bonding surface to be bonded with a surface of another of the plurality of thin plate members with the adhesive, at least one groove is formed in a breadthways direction of the thin plate member on the bonding surface, at least one groove is formed in a lengthwise direction of the thin plate member on the bonding surface, at least one of ends of the at least one groove formed in the breadthways direction does not reach an edge of the thin plate member that extends in the length direction, each end of the at least one groove formed in the lengthwise direction reaches respective opposing edges of the thin plate member that extend in the breadth direction, the at least one groove formed in the breadthways direction and the at least one groove formed in the breadthways direction intersect with each other, the at least one groove formed in the breadthways direction is provided to allow surplus adhesive and/or residual air bubbles to escape when the at least one bonding surface of the at least one of the plurality of thin plate members is bonded with the surface of another of the plurality of thin plate members, and the at least one groove formed in the breadthways direction carries no ink during normal operation of the print head.