Patent ID: 8189019
Filing Date: 2012-05-29
Classification: B41J

Abstract:
1. A thermal head comprising: a supporting substrate; a heat storage layer laminated on a surface of the supporting substrate via an adhesive layer made of an elastic material; and a plurality of heating resistors arranged with spaces therebetween on the heat storage layer, wherein: a cavity portion is formed at a region between the supporting substrate and the heat storage layer, the region being opposed to each of heat generating portions of the heating resistors; the adhesive layer comprises a first adhesive layer laminated on the surface of the supporting substrate and a second adhesive layer laminated on the surface of a heat storage layer such that the entire surface of the heat storage layer is covered with the second adhesive layer; and the elastic material constituting the second adhesive layer is arranged so that the elastic material is in a bonded state with respect to at least a part of the surface of the heat storage layer opposed to the cavity portion, wherein a part of the surface of the heat storage layer opposed to the surface of the supporting substrate exposed to the cavity portion is exposed to the cavity portion.