error-940mb3442i

Lexmark MB3442i error 940: Scanner Motor Failure

The Lexmark MB3442i error 940 indicates a scanner motor stall, preventing the device from completing the initialization sequence. This error is common if the scanner bed is obstructed. Use these steps to diagnose and clear the stall.

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Common causes

  • 1Debris or paper remnants in the scanner path.
  • 2Worn-out scanner drive belt.
  • 3Motor controller board error.
  • 4Sticky rails impeding scanner bar motion.

Solutions

Diagnóstico rápido

If the Lexmark MB3442i error 940 persists during startup, it signifies a mechanical failure inside the scanning module.

Solución paso a paso

  1. Power down and unplug the device.
  2. Open the scan cover and check for debris.
  3. Check the scanner track for blockages.
  4. Power up and watch for the scan bar to move.

Prevención y mantenimiento

Avoid placing pressure on the scan lid. Wipe the scanner rails with a dry, lint-free cloth annually to maintain smooth motion.

Cuándo llamar a un técnico

If the motor does not move even after power-cycling, the scanner belt or motor likely needs a technical repair.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Speed: 42 ppm
  • Connectivity: USB, Ethernet, Wi-Fi
  • Capacity: 250 sheet tray
  • Consumible compatible: 24B series toner
  • Recommended Use: Small to medium office
  • Official Driver/Firmware

Steps to follow

  1. 1

    Power off

    Turn off the printer and disconnect from power for 5 minutes.

  2. 2

    Inspect scanner

    Open the flatbed lid to check for obstructions or debris inside.

  3. 3

    Restart system

    Power on the printer to allow for a motor re-homing sequence.

Frequently asked questions

This error occurs when the internal scanner motor cannot complete its startup homing movement due to an obstruction or mechanical issue.

Yes, disconnecting from the power source is crucial for resetting the scanner controller board.

It uses Lexmark 24B series high-yield toner cartridges.

Keep the scanner flatbed glass clean and never place heavy objects on the printer cover.

Lexmark MB3442i error 940: Scanner Motor Failure | Vimazdev