| 摘要 |
PURPOSE:To obtain stable printing quality, in which the missing of dots and the like are not generated, by interposing a spacer and a porous spacer between a stopper member and an armature. CONSTITUTION:Printing is completed, and a wire 8 for printing is brought to the state of stand-by at the position of a spacer 15 on a stopper member 14 while pushing one end of an armature 1 by resiliency from a platen 13 and the spring force of a return spring 9. A porous spacer 16 is brought to the state in which it is held lightly between the armature 1 and the spacer 15 at that time. According to the constitution, the attraction of the armature 1 to the stopper member 14 can be prevented by effectively utilizing the irregularities of the surface as the feature of the porous spacer 16 and oil absorptive power. The armature 1 is pushed against the stopper member 14 through the spacer 15, thus preventing the direct application of force to the porous spacer 16, then obviating the crushing, friction, etc., of the porous spacer 16. Accordingly, the missing of dots, etc., can be checked for a prolonged term. |
