| 摘要 |
PURPOSE:To easily set a zero position by displaying a specific mark like a cursor on a display scale indicated with a zero-position operation knob. CONSTITUTION:The zero position adjusting screw 6a of an analog input unit 2 is set at a desired scale position. Then, a specific offset voltage corresponding to the graduation is passed through an amplifier 8 from a voltage output part 10 and converted by an A/D converter 9 into a digital signal, which is inputted to a CPU 11. The CPU 11 finds the dot address of a print head 3a corresponding to the voltage from the digital signal of the offset voltage and displays the specific mark M, e.g. a bidirectional array shown in a figure at the display graduation 7 of, for example, a channel CH1 of the display part 4 according to the scale position indication data. |
