K40
- Status indicator keeps lighting up red
- Software failure to fire the laser (Test button works)
- No laser emission after pressing "test"
- Engraved patterns having streaks
- Unsmooth gantry movement
- Weakened laser power
- Failure to connect engraver through software
- Laser power LCD display not lit
- Temperature LCD screen/LED strip/Air pump/Mainboard has no response
- Machine not powered on