| 摘要 |
PURPOSE:To drive a pulse motor accurately by adding two micro-processors for a driving timing pulse control of a motor for selection of letters and a motor for displacement of a carriage. CONSTITUTION:A driving timing pulse S1 for control a generation timing of the driving timing pulse of a motor 12 for a letter selection is outputted from a micro-processor 2 to a driver 7, and a hammer magnet 11 is controlled by former through a driver 6. A driving timing pulse S2 for control a generation of the driving timing pulse of a motor 13 for feeding of a carriage is outputted from a micro-processor 3 to a driver 8. It is sufficient only to give a control signal necessary for generation of the driving timing pulse to the micro-processor 2, 3 in connection with drive of the motors for a central control section 1. |
