e-004fi-7161C

Fujitsu fi-7161C error E-004: Multi-feed Detected

The Fujitsu fi-7161C error E-004 indicates that the ultrasonic detection system has identified a multi-feed event, meaning two or more sheets are being processed simultaneously. The scanner stops for safety to ensure that no vital information is missed during scanning. This is a very common error when scanning documents of varying weight or high static charge.

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Common causes

  • 1Static electricity holding sheets together.
  • 2Worn separation rollers failing to exert correct pressure.
  • 3Sensor sensitivity setting being too strict.
  • 4Irregular paper textures misleading the sensor.

Solutions

Diagnóstico rápido

The E-004 usually appears mid-job when the double-sheet sensor identifies that the thickness exceeds the allowed threshold. If you are using very thin bond paper or thermal paper, the scanner may mistake the weight for a double sheet. It is vital to distinguish this error from a physical jam (E-001).

Solución paso a paso

  1. Remove the document currently in the feed path.
  2. Inspect the sheets to see if they are joined by staples, adhesives, or electrostatic charge.
  3. Manually fan the documents to separate sheets before inserting them into the feeder.
  4. If the problem persists with legal documents, adjust the ultrasonic sensor sensitivity in PaperStream software.
  5. Ensure the paper separator (pad) is not excessively worn.

Prevención y mantenimiento

Use an anti-static spray in the tray area if working in dry environments. Regular cleaning of separation rollers is essential so that friction is uniform and multi-sheet dragging is avoided.

Cuándo llamar a un técnico

If, after adjusting sensitivity and cleaning the rollers, E-004 triggers randomly even with single sheets, the ultrasonic sensor might be out of calibration.

Ficha técnica del equipo

  • Technology: Duplex ADF with ultrasonic sensor
  • Speed: 60 ppm
  • Connectivity: USB 3.0
  • Capacity: 80 sheets
  • Compatible consumable: FI-7161 roller kit
  • Recommended use: Corporate document digitization
  • Official drivers / firmware

Steps to follow

  1. 1

    Check sheets

    Check that no sheets are stuck due to static or staples.

  2. 2

    Re-stack

    Fan the stack of documents to remove static.

  3. 3

    Settings

    If documents are thin, adjust sensitivity in PaperStream software.

Frequently asked questions

This error is triggered when the ultrasonic sensor detects that two or more sheets are being fed at the same time.

Remove the documents, verify them, and re-insert them into the tray.

Yes, from the driver settings, but it is only recommended for special documents like envelopes.

Keep separation rollers clean and free of paper debris.

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