| 摘要 |
PURPOSE:To eliminate the need for complicated control of acceleration and deceleration of a motor and for forming a control pulse train and reduce the quantity of electrode power required for acceleration or deceleration, by performing reversion of the moving direction of a printing head by collision and repulsion. CONSTITUTION:A head carriage 7 constitutes a linear motor together with a panel 8, and printing is conducted while the carriage 7 is moved rightward (leftward) relative to a printing paper 6. A potentiometer 15 is connected with the carriage 7 through a wire 10, and indicates the position of the carriage 7. Excitation of the motor is stopped when the carriage 7 comes sufficiently close to the right (left) end of a carriage guide 4. The carriage 7 collides against an elastic repelling mechanism 10, is decelerated by a spring, and a force accumulated at this time in the spring then reverses the moving direction of the carriage 7 to a leftward (rightward) direction. With the reversion of the moving direction being detected, the excitation of the motor for moving the carriage leftward (rightward) is started. |
