55.00.02LaserJet Enterprise M507dn

Error 55.00.02 HP LaserJet Enterprise M507dn: Sensor Failure

The HP LaserJet Enterprise M507dn error 55.00.02 is a critical DC Controller error. It signals that the internal communication for speed regulation is unresponsive, forcing the printer to lock. This is typically a hardware failure of the board.

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Common causes

  • 1DC Controller communication failure.
  • 2Motor power surge.
  • 3Internal board damage.
  • 4Faulty internal cabling.

Solutions

Diagnóstico rápido

If the printer displays 55.00.02 and makes relay-clicking noises, the control logic is failing to initialize the motor correctly.

Solución paso a paso

  1. Turn off and unplug the unit.
  2. Wait 30 seconds and connect directly to the wall power.
  3. Power up. If the error persists, the DC controller is faulty.

Prevención y mantenimiento

Use high-quality surge protectors to safeguard the internal DC board. Keep the machine dry.

Cuándo llamar a un técnico

The 55.00.02 is a board-level failure; if power cycles do not help, replacement by a certified technician is required.

Ficha técnica del equipo

Steps to follow

  1. 1

    Power off

    Unplug the power completely for 30 seconds.

  2. 2

    Check connections

    Verify no internal board cables are loose.

  3. 3

    Reboot

    If the error returns, the DC Controller board may be damaged.

Frequently asked questions

This implies a communication failure with the DC Controller. A deep power cycle may clear temporary faults.

If the cycle doesn't work, the DC Controller board likely needs replacement.

HP 89A/89X. Toners do not affect this internal control error.

Usually a hardware fault in the controller triggered by power surges.