| 摘要 |
PURPOSE:To miniaturize a substrate part, by providing electric conductive parts such as through-holes piercing a substrate from the front side thereof to the back side thereof in the vicinity of the heat generating part on the substrate in the number corresponding to the number of the electrodes of the heat generating part and attaching terminals to the electric conductive parts led out to the back surface of the substrate. CONSTITUTION:To a substrate 11 comprising ceramic, a heat generating part 12 having a plurality of dot printing electrodes 12a arranged to the printed surface 11a on the surface of said substrate 11 and electric conductive parts 16 comprising through-holes formed in the vicinity of the heat generating part 12 corresponding to the electrodes 12a by piercing holes 15 are provided. Further, connection terminal pins 13 attached to the electric conductive parts 16 exposed to the back surface 11b of the substrate 11 are fixed to the substrate 11 at the mount sides thereof in such a state that the free terminal sides coming to the leg parts of said pins are exposed so as to be capable of being inserted in a head mount part and a molding part 14 forming an outer frame for bringing the printing surface 11a of a thermal head A to a predetermined outer shape dimension is provided. |
