| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems that, in a conventional side yoke mounting system, an extrusion molding system has problems of irregularities in light and shade of printing at multiple-page printing due to the insufficient strike printing force by a hammer spring and a reduction in printing density, while a separate member connection system has a problem of breakage of a side yoke or the like due to the insufficient connection strength of the side yoke. SOLUTION: The printing device has dot printing means, a reciprocating means for reciprocating the dot printing means and a paper feeding means. The dot printing means is constituted of an elastic member being a magnetic substance connected to a printing pin, of a magnetic circuit comprising a side yoke arranged on the side surface of the elastic member, a front yoke integrally molded with the side yoke and arranged in front of the elastic member, a magnet and a yoke, and of a canceling means for canceling the magnetic suction working on the elastic member. The printing device, wherein a plurality of the elastic members and the magnetic circuits are arranged in the direction of print digit, is characterized in that a magnetic body is embedded in the groove formed when the side yoke and the front yoke are integrally molded. COPYRIGHT: (C)2007,JPO&INPIT
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