a thermal head comprises a head circuit board having a surface carrying a heating resistor line and at least one drive element for heating the resistor line . the drive element is enclosed in a resinous package . at least a surface portion of the resinous package is electrostatically conductive but electrically non - conductive to work as antistat . the antistatic surface portion or entirety of the resinous package may be made of electrically non - conductive matrix resin which contains a predetermined percentage of electrically conductive substance .