50.xx.xxHP Color LaserJet Enterprise M653dn

HP Color LaserJet M653dn Error 50.xx.xx Fix

The 50.xx.xx error code on the HP Color LaserJet Enterprise M653dn refers to a failure in the fuser unit. This component is responsible for heating the toner to fuse it onto the paper, and when the thermal sensor detects an issue, the printer locks down for safety. The most common solution involves checking the power connection and potentially replacing the fuser unit if the heating element is damaged.

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Common causes

  • 1Internal heating element failure (burnt heating coil).
  • 2Voltage fluctuations affecting the thermal sensor stability.
  • 3Natural wear of the fuser rollers after a high duty cycle.
  • 4Severe paper jam preventing mechanical rotation.

Solutions

Diagnóstico rápido

The 50.xx.xx error is identified when the control panel displays this message at startup or during a print job. It is often accompanied by unusual mechanical noise or a lack of heat dissipation from the rear of the printer. It is crucial to distinguish if this is a transient power error or a permanent hardware failure.

Solución paso a paso

  1. Power off the printer and unplug the power cable from the wall outlet.
  2. Wait at least 30 minutes to allow the fuser unit to cool down completely.
  3. Check the power source, ensuring the printer is plugged directly into a wall outlet rather than a UPS or power strip that might cause voltage drops.
  4. Inspect the fuser by opening the rear door to check for any paper jams or debris preventing roller rotation.
  5. Turn on the device and observe if the message persists; if so, hardware replacement is required.

Prevención y mantenimiento

To prevent fuser failure, keep the printer in a well-ventilated area. Avoid high-volume printing without cool-down periods, as thermal stress accelerates wear. Use heavy media only when necessary and ensure you use original toner to avoid residue buildup on the pressure rollers.

Cuándo llamar a un técnico

You should contact a professional technician if the error persists after performing the power cycle and direct wall connection. Fuser maintenance involves high-temperature components that carry safety risks and require specific tools to ensure proper alignment.

Ficha técnica del equipo

  • Technology: High-performance color laser printing.
  • Speed: Up to 60 ppm.
  • Connectivity: Gigabit Ethernet, high-speed USB 2.0 port.
  • Input capacity: 550-sheet tray + 100-sheet multipurpose tray.
  • Compatible consumables: HP 655A / 655X (CF450X series).
  • Recommended use: High-volume enterprise environments.
  • Drivers / Official Firmware

Steps to follow

  1. 1

    Power cycle

    Unplug the power cord for 30 minutes to reset the thermal sensor.

  2. 2

    Physical inspection

    Open the rear cover to verify there are no paper remnants in the fuser area.

  3. 3

    Direct power connection

    Connect the printer directly to a wall outlet to eliminate power instabilities.

  4. 4

    Final verification

    Restart the device; if the error returns, the fuser assembly needs replacement.

Frequently asked questions

It is a critical error that prevents printing because the fuser is essential for the printing process.

No, for safety reasons and to avoid damaging the power supply, the system disables all printing tasks.

Use genuine HP 655 toner cartridges to ensure correct compatibility with the printer's heating components.

Regular preventive cleaning and using approved paper weights will significantly extend the life of the fuser.