| 摘要 |
PURPOSE:To improve the operating speed by equalizing the interval between dots, by adding the auxiliary exciting signal advancing a wire without making it mark dots to an electromagnet just before dot marking. CONSTITUTION:The auxiliary exciting signal advancing a wire 10 without making the wire 10 mark dots is added to an electromagnet 20 at least just before the top of wire marks dots by advancing the wire 10 by exciting this electromagnet 20. When the current by which the wire does not mark dots advance to this side thereof is thus repeatedly applied to the coil 16 of a print head, an armature 12 and the wire 10 become of a vibrating state. If the current applied to the coil 16 is, under such a state, made to be ordinary exciting current marking dots, the operation without lag from the first time can be obtained. |
