Common Troubleshooting

Problem: Fading or Inconsistent Mark Quality

Most likely cause: Dirty protective window or F-theta lens.

Fix: Clean both optics following the procedure above. If quality doesn’t improve, check:

• Focus distance (may have shifted)
• Laser power output (use a power meter if available)
• Material surface (different batch = different results)

Problem: Marks Are Blurry or Have Soft Edges

Most likely cause: Focus issue or optical contamination.

Fix:

Problem: Laser Won’t Fire or Intermittent Firing

Most likely cause: Electrical connection issue or safety interlock triggered.

Fix:

Problem: Overheating Alarm

Most likely cause: Cooling system failure or obstruction.

Fix:

Problem: Galvo Scanner Noise or Vibration

Most likely cause: Contamination or wear in the galvo assembly.

Fix: This requires professional service. Do not attempt to disassemble the galvo scanner yourself. Contact the manufacturer or a certified service technician. Operating a malfunctioning galvo can cause permanent damage.

When to call professional service:

• Power output has dropped more than 20% despite clean optics and proper cooling
• Mark quality is inconsistent despite correct settings and focus
• The laser source shows fault codes that don’t clear after power cycling
• You hear unusual noises from the laser source or galvo
• Any visible damage to the fiber cable, optics, or electrical components