| 摘要 |
PURPOSE:To perform marking operation rapidly without damaging a pen tip, by descending a pen holder at a high speed for the 1st stage and then descending the pen tip at a low speed for the 2nd stage. CONSTITUTION:When a marking operation switch is turned on after one point on an original drawing, an operation signal is applied to a solenoid 36 to move an operating shaft 38 in a projecting direction. Consequently, an arm 34 is pushed to lower a pen holder 24 at a high speed. Then, a driving signal is applied to the solenoid 32 to rotate the power shaft of the solenoid 32, so that the arm 34 pushes the holder 24 slantingly. Consequently, a pen 26 is lowered slowly to give a mark, showing the completion of a read, at a readout point, and enters on reading another point. Consequently, the marking operation is speeded and the pen tip is prevented from damaging. |
