The Markem SmartLase 130 is a compact CO₂ laser coder designed for permanent text and variable data marking on packaging lines. Common failures include laser tube burnout, mirror misalignment or contamination, power supply instability, and controller firmware glitches that trigger error codes such as “E‑01” (laser off) or “E‑02” (mirror drive fault). Initial checks should verify the main power supply voltage and current to the laser module, inspect the optical path for dust or debris on mirrors and lenses, and review the control panel’s diagnostic display for any stored error codes. If no faults appear, proceed with a laser output test using a calibrated target and confirm the controller firmware version matches the latest service guide recommendation.[oss-gpt-20b]