When the machine processes for four hours, the XCS software will prompt the error code "Wx13". Please follow the instructions below to clean the laser lens.
Check the lens with the front camera of your phone or mirror. Clean the lens with a cotton swab moistened with alcohol.
Power off the machine, remove the baseplate and then turn M1 upside down, and then clean the lens with a cotton swab moistened with alcohol.
Note: Cleaning the laser lens will improve the stability of the laser power.