THERMODRUCKKOPF

摘要

The thermal printing head according to the present invention is provided with a stepped radiating plate (1) having a first support surface (1a) in a higher position and a second support surface (1b) in a lower position, a head base plate (2) fixed on the first support surface (1b) of this radiating plate (1) and having a printing dot (3) formed thereon, and a printed circuit board (14) fixed on the second support surface (1b) of the radiating plate (1) and having various types of wiring patterns formed thereon. The head base plate (2) has an edge portion projecting from the first support surface (1a) of the radiating plate (1) toward the second support surface (1b) thereof. The printed circuit board (14) overlaps the projecting edge portion of the head base plate (2) via a clearance (18) of a predetermined height left therebetween.