Actually the suggestion about whether you changed your laser gas bottle recently is a very good one. If you obtained a bottle with the incorrect mixture, you may not get much power at all out of the resonator. If you can change the to one from a new batch and cycle the machine on and off...
You are past your scheduled maintenance period. The problem could be as simple as a bad or contaminated output coupler. I would recommend calling the Mazak Service Support staff (847-252-4600) and discuss problem further. We can have you do a few troubleshooting tests which will further help...
This could be something in the resonator, or it could be as simple as having a cover not completely closed.
Are you reading this power on the Command screen? Are you sure you are calling up full power?
