| 摘要 |
PURPOSE:To improve the printing quality and gradation recording property of a thermal head by dividing a section which comes into contact with the thermal resistors of discrete electrodes and forming each single display dot of the divided discrete electrode and a plurality of common electrodes. CONSTITUTION:A section which comes into contact with at least the thermal resistor 5 of a discrete electrode 4 of all the electrodes provided, is divided. A single display dot is formed using four heat-generating sections 8a-8d formed on the divisions, mutually opposed, which are sandwiched between a plurality of discrete electrodes 4a, 4b and a plurality of common electrodes 3. Thus the printing quality and gradation recording property of a thermal head can be increased, and electric power be saved very simply. |
