Patent ID: 6497477
Filing Date: 2002-12-24
Classification: B41J,H01L

Abstract:
An ink-jet head comprising:(a) a head main body in which a plurality of nozzles, a plurality of pressure chambers which correspond to said plurality of nozzles, respectively, and a plurality of actuators which correspond to said plurality of nozzles, respectively, are provided, (b) a driver IC in which a drive circuit for outputting a drive signal to each of said plurality of actuators is provided, (c) connecting members for establishing connection between said drive circuit and each of said plurality of actuators so that said drive signal is transmittable therebetween, wherein said plurality of nozzles are arrayed on a first side of said head main body, wherein said driver IC is mounted on an opposite second side of said head main body, wherein said plurality of actuators are arranged on said second side of said head main body on which said driver IC is mounted, wherein each of said plurality of actuators includes an input terminal coupled to a corresponding one of said connecting members and a drive portion for producing drive force used to emit ink through a corresponding one of said plurality of nozzles upon receipt of said drive signal, wherein a drive portion group composed of an array of said drive portions of said plurality of actuators is provided on said second side of said head main body on which said driver IC is mounted, wherein said driver IC is mounted so as to lie astride said drive portion group, wherein each of said plurality of actuators is provided with a relay terminal for the relaying of a signal for driving said drive circuit of said driver IC, and wherein said ink-jet head further comprises auxiliary connecting members for establishing connection between each of said relay terminals and said, drive circuit so that said signal can be fed to said drive circuit via said relay terminal.