<p>A display control device (10) includes: error detection means (11) for detecting an abnormal state; a blinking display control section for making red and yellow display lights (3, 4) perform blinking operation; an error display control section (21) for making a blue display light (5) perform display of a character of error information; and a control switching section (28) for receiving an error detection result by the error detection means and switching control by a display control section (7) to control by the error display control section (21).</p>
