Thermal head for thermal recording machine.

摘要

A thermal head for a thermal recording machine including an insulating substrate (1) which is composed of a printed circuit board made of a heat resistant resin and covered with a copper film, a plurality of thermal resistors (2) disposed on the insulating substrate in the direction corresponding to the scanning, discrete electrodes (4) electrically connecting one ends of the thermal resistors (2) to a control element (3), a common electrode (5) electrically connecting the other ends of the thermal resistors (2) together, a heat releasing layer (6) formed of the copper film of the insulating substrate (1) on the lower portions of the thermal resistors (2), and a thermal accumulating layer (7) of a polyimide resin covering the heat releasing layer. <IMAGE>