U1fi-6670

Fujitsu fi-6670 Error U1: Jam Fix Guide

Fujitsu fi-6670 error U1 signals a document jam within the scanner path. This fault triggers when sensors detect an interruption, protecting your documents from tearing. Regular maintenance of the rollers and glass is key to preventing this issue. The fi-6670 is a high-speed production scanner designed for industrial scanning needs.

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Common causes

  • 1Dirty feed rollers or adhesive residue on pick surfaces.
  • 2Paper out-of-spec or misaligned in the feeder.
  • 3Optical sensors blocked by paper dust/debris.
  • 4Physical wear of the traction rubber parts.

Solutions

Diagnóstico rápido

The U1 code appears when a document fails to reach the exit sensor in time. If you hear the motor struggling, there is likely an physical obstruction.

Solución paso a paso

  1. Access: Open the top cover using the release lever.
  2. Clear: Gently pull any wrinkled documents from the path to avoid sensor damage.
  3. Clean: Wipe the feed rollers with a designated scanner cleaning cloth.
  4. Close: Ensure the lid clicks shut to reactivate the safety sensors.

Prevención y mantenimiento

Daily cleaning of the rollers is essential for high-volume use. Replace the roller kit (pad/pick roller) every 100,000 scans to ensure consistent paper traction.

Cuándo llamar a un técnico

If the U1 error persists after cleaning and clearing the paper path, an internal sensor might be faulty, which requires a professional service repair.

Ficha técnica del equipo

  • Technology: Duplex department scanner.
  • Speed: 70 ppm.
  • Connectivity: USB 2.0 / SCSI.
  • Capacity: 200-sheet ADF.
  • Compatible supplies: fi-6670 roller kit (pad/pick).
  • Recommended use: Production-level scanning.
  • Official drivers / firmware

Steps to follow

  1. 1

    Open scanner

    Lift the top cover carefully.

  2. 2

    Clear jam

    Remove the stuck paper gently.

  3. 3

    Clean sensors

    Wipe sensors with a dry cloth.

Frequently asked questions

It is a document jam or paper-feed failure code.

Yes, it happens if rollers are dirty or worn.

It uses standard long-life roller kits.

Clean daily for high-volume environments.