Thermal head

摘要

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.