Thermal printing head and method for producing it includes insulating substrate, heat retaining glazed layer on substrate, glazed layer with thin-walled part and cambered part and level part with heat resistor

摘要

A thermal printing head has an insulating substrate (10) and a heat retaining glazed layer (20) on the substrate. The glazed layer with a thin-walled part has a cambered part (20A) and a level part (20B) set at a distance from the cambered part where there is a heat resistor (30). There is an electrode pattern on the glazed layer in electrical contact with the heat resistor. A protective layer (50) covers the glazed layer and the electrode pattern.