p-01DL3850 II

Fujitsu DL3850 II Error P-01: How to Fix Paper Jam

The Fujitsu DL3850 II error P-01 indicates that the paper sensor has detected a blockage in the document path. This is a common issue typically caused by misaligned continuous forms or dust accumulation. To resolve this error, you must clear the path and ensure the paper is not under excessive tension.

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Common causes

  • 1Misaligned paper: Incorrect tractor settings.
  • 2Internal debris: Small paper scraps blocking optical sensors.
  • 3Roller wear: Insufficient traction causing paper folding.
  • 4Obstructions: Foreign items caught in the printhead area.

Solutions

Diagnóstico rápido

The P-01 error is usually accompanied by a motor grinding sound. If the print head does not move, check for physical paper blockages immediately.

Solución paso a paso

  1. Power off the printer and unplug the power cable.
  2. Release the tractor lever to relieve paper tension.
  3. Carefully extract the jammed paper from the top area.
  4. Inspect sensors for small paper scraps blocking the light path.
  5. Restart the printer to reset the system status.

Prevención y mantenimiento

Clean the rollers with a dry cloth periodically. Avoid heavy cardstock and use original ribbons to prevent dragging issues.

Cuándo llamar a un técnico

If the error persists after clearing the path, the paper sensor might be physically broken and will require professional servicing.

Ficha técnica del equipo

  • Technology: 24-wire dot matrix
  • Performance: Up to 600 cps
  • Connectivity: USB, Parallel
  • Paper Feeding: Rear/Front push tractor
  • Compatible consumable: DL3850 ribbon series
  • Recommended use: Industrial and office environments
  • Drivers / firmware official

Steps to follow

  1. 1

    Power Off

    Power down the printer and unplug to ensure safety.

  2. 2

    Clear Paper

    Open the top cover and gently remove jammed paper.

  3. 3

    Inspect Sensors

    Ensure no small scraps remain near the sensors.

  4. 4

    Restart

    Close the cover and power on to clear the error.

Frequently asked questions

The P-01 code signals a paper jam detected by internal sensors when paper flow is interrupted.

It is a standard operational error, but it requires prompt resolution to prevent printhead damage.

Use genuine DL3850 series ribbons for consistent print quality.

Keep feed rollers clean and ensure paper alignment is correct before starting large print jobs.