| 摘要 |
PURPOSE:To print the same information of two sheet of recording paper in high reliability by simultaneously enabling printing by means of a plurality of printing needles on the two sheet of recording paper through armatures, etc. with two printing needle drive sections by means of printing needle driving means each driving the needles. CONSTITUTION:Two printing needles 3 are fixed to printing needle driving sections 1a, 1b at locations symmetrical to the centroid 1d of the armature. Coil 2 is conducted so as to generate magnetic flux in the broken-line arrow-head direction, magnetic flux that permanent magnets 12 generate through yokes 4, 5 and magnetic flux that the coils 2 generate are worked arithmetically, attracting force is generated in void sections 18, 19 and the armatures 1 are oscillated in the counter-clockwise direction. The two printing needles 3 are driven at the same time by reason of the oscillation, and each prints on recording paper simultaneously through an ink ribbon 14. |
