1、 Check whether the reflecting lens and collecting lens are dirty. If they are dirty, please scrub them with alcohol immediately;

2、 Check the output of the ammeter and the power of the laser machine. Take 80W as an example. If the power is 100%, the output of the ammeter should be about 20mA. If the current cannot reach 10mA, it indicates that the laser power supply is broken. If it can reach more than 18mA, it indicates that the laser tube is aging and needs to be replaced.

3、 At ordinary times, do a good job of laser tube maintenance, which can greatly extend the service life of the laser tube.