The overall cleanliness and lubrication of the equipment are normal. Check for any debris on the equipment and around it. The equipment current should not exceed 20A. Check if there are any mobile phones or strong magnetic objects near the galvanometer. Check for any abnormal noises during equipment operation. Do not touch the lens with hands or other objects. Strictly follow the power-on and power-off procedures for the equipment's power switch. In case of computer freeze or software unresponsiveness, immediately turn off the galvanometer switch.