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PL5 Series Fiber Laser Marking System Page 39 of 40
Note that any dirt, dust and other contaminants on the surface of the beam exit can absorb laser energy
and burn into the surface to damage the optical elements. The warranty does not cover any damage due
to improper use, cleaning or handling.
1. Before cleaning, ensure that the laser system is shut down and can not be accidentally turned
on again.
2. Use clean gloves or finger cots. Avoid touching the mirror with skin as fingerprints contain
aggressive substances that can damage the optical surfaces.
3. If dust particles are inspected, remove them by blowing air on the mirror surface with a rubber
squeeze bulb.
4. If the lens surface is still not clean, use a cotton ball or swab with high-purity isopropanol or
acetone to uniformly clean the surface. Don’t use too much solvent, otherwise drying marks
might appear.
5. If the dust cannot be removed by air, or if inspect more serious contamination, contact Phezer
LASER for guidance. In extreme cases, the lens must be returned to Phezer LASER for inspection
and cleaning.
Phezer recommend to clean the lens by blowing air not less than once per day. The cleaning frequency
depends on the specific environmental conditions of the production site. If there is a lot of smoke and
particles on the production site, the lens will get dirty faster, which requires more frequent cleaning.
Each user should establish corresponding cleaning requirements according to the production situation.
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