Patent ID: 6471341
Filing Date: 2002-10-29
Classification: B41J

Abstract:
An ink jet head in which oscillation is caused in a pressure chamber communicated with a nozzle to bend a portion of a wall surface of said pressure chamber thereby to emit ink, comprising:an oscillating plate formed of resin provided on at least a portion of the wall surface of said pressure chamber; a unimorph including an elastic plate and an oscillator, provided on said oscillating plate the oscillator including electrodes distinct from the elastic plate; and said oscillator is adhered to said elastic plate by a first adhesive layer, and adhered to a terminal by a second adhesive layer, said second adhesive layer being thicker than said first adhesive layer; wherein dimension of a bending portion provided by said unimorph is larger than dimension of the wall surface of said pressure chamber corresponding to said unimorph.