1. Laser power is damaged: Replace the laser power.
2. tombstone engraving machine machine temperature is too high: 1 off let cool down; 2 ventilation strengthen machine cooling; 3 Adjust the ambient temperature.
3. focusing mirror is contaminated: clean the focusing mirror.
4. The cooling water quality or temperature is normal: Replace the cleaning of cooling water to a temperature to normal.
5. The relief engraving machine equipment focus is the focal length changes: re-adjust the focus.
6 reflective lens for contamination or damage: Clean or replace the reflective lenses.
7. The optical path is offset: carefully adjust the optical path ......
8. Is the laser tube is damaged or aging: replace the laser tube.
9. Are circulate cooling water: clear cooling water.
10. The laser power supply is powered: Check the laser power supply circuit to make it normal.
