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LSU error [zzz]

LSU error [zzz] — Laser Scanning Unit malfunction

Samsung · Laser Printers

¿Qué significa LSU error [zzz] ?

The Laser Scanning Unit (LSU), which directs the laser to create the image on the drum, has detected an internal error. This might be due to motor issues or problems with laser detection.

Causas comunes

  • LSU motor does not operate correctly
  • Laser beam detect signal is not occurring or is irregular

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Turn the printer completely off, wait 30 seconds, then turn it back on.

  2. 2

    Listen carefully for any unusual noises coming from the printer during startup; this could indicate a motor problem.

  3. 3

    If the error reappears after these steps, contact service for further diagnosis.

Ver todos los códigos en este manual (57)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

Abnormal PrintingAbnormal printing — Strange characters or no outputAbnormal noise (scanner)Abnormal noise — Scanner making unusual soundsCover openCover open — Printer indicates a cover is not closed
Fuente: Samsung Laser Printers
Open Manual (Page 110)Buscar más códigos en este manual