Patent ID: 8629892
Filing Date: 2014-01-14
Classification: B41J

Abstract:
1. A thermal head, comprising: a support substrate including a concave portion formed in a front surface thereof; an upper substrate bonded in a stacked state to the front surface of the support substrate, the upper substrate including a convex portion formed at a position corresponding to the concave portion; a heating resistor provided on a front surface of the upper substrate at a position straddling the convex portion; and a pair of electrodes provided on both sides of the heating resistor, each of the electrodes being formed in a region outside of the convex portion, and the convex portion extending at a height greater than each of the electrodes; wherein at least one of the pair of electrodes comprises: a thin portion connected to the heating resistor in a region corresponding to the concave portion; and a thick portion connected to the heating resistor and having a thickness greater than that of the thin portion.