401-errorC311dn

OKI C311dn Error 401: Fuser Unit Failure

The OKI C311dn error 401 indicates a critical fuser unit issue where the fuser fails to reach or maintain operating temperature.

1 views

Common causes

  • 1Defective fuser heater.
  • 2Sensor misreadings.
  • 3Internal debris.
  • 4Faulty power supply board.

Solutions

Diagnóstico rápido

If the printer halts immediately with error 401, the fuser unit heating element is likely defective.

Solución paso a paso

  1. Power off and unplug.
  2. Check the rear exit for jams.
  3. Wait 30 minutes to cool.
  4. Call a technician for parts replacement.

Prevención y mantenimiento

Ensure high-quality media is used to avoid internal debris.

Cuándo llamar a un técnico

Error 401 usually requires a replacement of the fuser assembly.

Ficha técnica del equipo

Steps to follow

  1. 1

    Power Off

    Unplug the unit.

  2. 2

    Inspect Rear

    Check for jammed sheets.

  3. 3

    Cool

    Wait for temperature reset.

Frequently asked questions

Fuser unit temperature failure.

No, it is blocked.

Genuine OKI toner.

Regular maintenance.