| 摘要 |
PURPOSE:To easily adjust the display contrast of a display means by rewriting adjustment data which are stored on a memory by key input on a console panel. CONSTITUTION:This device is equipped with a liquid crystal display device (LCD) 41 which displays an operation state, etc., with a message and an analog voltage outputted from a D/A converter 13 is controlled according to the adjustment data stored on the memory 12 to hold constant display contrast. Then when the display contrast of the LCD41 is adjusted, LCD contrast being selected and the current adjustment data stored on the memory 12 are displayed on the LCD41 with a ten-key 32, a copy key 31, etc. In this display state, when an interruption key 43 is pressed, the new adjustment data displayed on the LCD41 are stored on the memory 12. Consequently, the display contrast of the LCD41 can easily be adjusted. |
