31.01CX331adwe

Lexmark CX331adwe error 31.01: Causes and Solutions

The Lexmark CX331adwe error 31.01 is a diagnostic code signaling a fault within the paper input tray mechanism. This issue occurs when the system fails to detect paper correctly or encounters a block in the feeding sequence. Here is the technical breakdown and the necessary steps to resolve the 31.01 error effectively.

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Common causes

  • 1Misaligned guides: Media sits askew, blocking sensor detection.
  • 2Sensor debris: Dust or cellulose preventing detection.
  • 3Worn rollers: Aging friction points reducing paper feed success.
  • 4Improper tray engagement: Sensor fails to acknowledge tray presence.

Solutions

Diagnóstico rápido

The error 31.01 is signaled by a screen notification; if the tray is empty or misaligned, the printer will refuse to enter a ready state.

Solución paso a paso

  1. Pull tray: Remove the input tray and check for jammed paper.
  2. Check media: Ensure paper guides are locked against the stack.
  3. Inspect sensors: Clean the area where the tray makes contact with the machine.
  4. Reinstall: Reinsert the tray until it locks into place firmly.

Prevención y mantenimiento

Do not overload the input tray. Keep the environment clean to prevent dust from accumulating on the feed sensors. Use genuine Lexmark supplies to ensure all components and sensors operate within factory specifications.

Cuándo llamar a un técnico

If the error remains after verifying the tray and paper alignment, the internal presence sensor may require replacement by authorized personnel.

Ficha técnica del equipo

  • Technology: Color Laser
  • Speed: Up to 26 ppm
  • Connectivity: Wi-Fi, Ethernet, USB
  • Capacity: 250 sheets standard
  • Compatible Consumables: C331 series toner
  • Usage: Medium volume offices
  • Official drivers / firmware

Steps to follow

  1. 1

    Pull tray

    Remove the paper input tray completely.

  2. 2

    Check media

    Verify that paper is properly aligned within the guides.

  3. 3

    Inspect sensors

    Ensure the sensor area is clear of debris.

  4. 4

    Reinstall

    Slide the tray back into the unit firmly.

Frequently asked questions

The error points to a communication failure between the paper tray sensor and the printer logic.

Yes, re-seating the tray and realigning the paper usually resolves it.

It uses C331 series toner cartridges.

Yes, keeping rollers clean prevents tray-related error messages.