error-e4DCP-L3551CDW

Brother DCP-L3551CDW E4 Error Fix

The Brother DCP-L3551CDW error E4 indicates a mechanical failure in the scanner assembly. This error arises when the scanner fails to reach its home position during bootup. Checking for physical obstructions in the scanner track is the recommended first step.

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Common causes

  • 1Scanner carriage mechanical jam.
  • 2Burnt scanner motor.
  • 3Defective home position sensor.
  • 4Damaged internal ribbon cable.

Solutions

Diagnóstico rápido

If you hear a grinding noise upon startup, the scanner carriage is hitting an obstruction. This confirms a physical mechanical fault.

Solución paso a paso

  1. Power off: Unplug power.
  2. Check: Ensure glass is clean.
  3. Clean: Use a dry microfiber cloth.
  4. Reboot: Turn back on and watch for carriage movement.

Prevención y mantenimiento

Keep the scanner lid closed when not in use to block dust from reaching the internal sensor optics.

Cuándo llamar a un técnico

If the error persists after checking for debris, the scanner motor or the data ribbon cable may be damaged and need professional servicing.

Ficha técnica del equipo

  • Scanner Tech: CIS
  • Resolution: Up to 1200 x 2400 dpi
  • Maintenance: Periodic glass cleaning
  • Consumables: Not applicable to scanner
  • Drivers / official firmware

Steps to follow

  1. 1

    Power off

    Disconnect the unit from the power cord for 5 minutes.

  2. 2

    Check physically

    Lift the lid and check for any objects blocking the scanner carriage.

  3. 3

    Soft cleaning

    Wipe the glass surface with a dry cloth to ensure no smudges affect the sensor.

  4. 4

    Reboot

    Power the unit back on and observe if the scanner performs the initial movement.

Frequently asked questions

Error E4 indicates a scanner lock. The internal motor cannot move the carriage to the home position, or there is an issue with the position sensor.

If it's a mechanical jam caused by dirt, yes. If the motor itself has failed, replacing the scanner module is the only permanent solution.

Avoid placing heavy items on the lid and never force the carriage movement manually.

Indirectly, toner dust buildup inside the machine can reach the scanner optics if not maintained properly.