940T642n

Lexmark T642n Error 940: Motor Failure

The Lexmark T642n error 940 signifies a problem with the main drive motor. This error appears when the motor cannot turn freely or hits an excessive load. Understanding the cause of the Lexmark T642n error 940 is key to determining if you have a simple jam or a hardware motor failure.

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Common causes

  • 1Mechanical jam preventing motor rotation.
  • 2Main motor driver board defect.
  • 3Seized gears in image unit.
  • 4Motor bearing wear.

Solutions

Diagnóstico rápido

If the error is accompanied by grinding noises, check the entire path of the paper for jammed paper or broken gear fragments.

Solución paso a paso

  1. Check for jams: Ensure no obstructions exist in the toner or drum assembly.
  2. Manual rotation: Try spinning the rollers by hand while the unit is off to check for resistance.
  3. Reboot: Cycle the power to attempt a free motor start.

Prevención y mantenimiento

Routine cleaning to remove toner dust buildup is essential to reduce friction on moving parts.

Cuándo llamar a un técnico

If mechanical rotation is clear but the error persists, the motor itself or its driver board requires replacement.

Ficha técnica del equipo