| 摘要 |
PURPOSE:To achieve an independent control of a chopper and a paper feeding without unstability of the servo and amplification systems by regulating a chopper motor with vertical oscillation of a chopper pen and a specific pen position signal. CONSTITUTION:A motor 2 incorporated in a recorder 1 is controlled receiving a paper feed controlling signal a from outside. On the other hand, when a chopper motor control signal b is inputted into a chopper motor controlling circuit 4, a correction signal c for controlling a chopper motor is outputted to drive a chopper motor 3. With the input of the signal b, judgement is made on whether it corresponds to the specific pen or not by a pen vertical movement signal e. When it is YES, the signal b is confirmed and the correction signals c are produced continously as long as the signals b are inputted. When they are not inputted, the output of the signals c is halted. Thus, the chopper and the paper feeding can be controlled independently without unstablity of the servo and amplification systems. |
