50.01.01LaserJet Enterprise MFP M634dn

HP LaserJet Enterprise MFP M634dn error 50.01.01

The HP LaserJet Enterprise MFP M634dn error 50.01.01 relates to the fuser unit failing to heat correctly. This is often caused by an open circuit in the heating element or thermistor issues. To fix the 50.01.01 error on your HP LaserJet Enterprise MFP M634dn, perform a full power cycle and inspect the fuser unit for wear.

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Common causes

  • 1Fuser lamp open circuit.
  • 2Faulty thermistor.
  • 3Power surges.
  • 4Fuser mechanical failure.

Solutions

Diagnóstico rápido

The error indicates the fuser isn't hitting temp. Check your power outlet for stability.

Solución paso a paso

  1. Turn off power.
  2. Allow 30 mins cooling.
  3. Plug into direct wall outlet.
  4. If error recurs, fuser is faulty.

Prevención y mantenimiento

Install the maintenance kit per the manufacturer's suggested cycle to prevent fuser degradation.

Cuándo llamar a un técnico

This is a major hardware failure; contact support for a fuser unit replacement.

Ficha técnica del equipo

  • Technology: Laser Mono.
  • Speed: 55 ppm.
  • Connectivity: USB/LAN.
  • Consumibles: HP 147 series.
  • Use case: Enterprise.
  • Official Drivers/Firmware

Steps to follow

  1. 1

    Power Off

    Cut power.

  2. 2

    Cool

    Let cool.

  3. 3

    Inspect

    Check fuser.

  4. 4

    Restart

    Initialize.

Frequently asked questions

A fuser temperature failure.

Yes, requires service.

HP 147 series.

Regular maintenance kits.