e-004ScanSnap S501

Error E-004 Fujitsu ScanSnap S501: Connection Fail

The Fujitsu ScanSnap S501 error e-004 occurs when the computer loses connection with the scanner. This USB communication fault halts data transfer. To solve the e-004 error on the ScanSnap S501, verify cable integrity and device drivers.

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Common causes

  • 1Low-quality or damaged USB cables.
  • 2Front USB ports providing insufficient voltage.
  • 3Obsolete drivers failing to handshake with Windows.
  • 4USB power saving mode suspending the port.

Solutions

Diagnóstico rápido

The E-004 is typical when the USB cable is loose or when Windows power management has suspended the device to save energy.

Solución paso a paso

  1. Change port: Connect the USB cable to a different port on the rear of your PC.
  2. Check cable: Ensure the USB cable shows no physical damage or sharp kinks.
  3. Reinstall: Download and reinstall the official ScanSnap drivers to ensure OS compatibility.

Prevención y mantenimiento

Use the original USB cable. Avoid connecting the scanner via docking stations or passive hubs. Keep firmware updated.

Cuándo llamar a un técnico

If the error persists after testing on multiple computers with different cables, the internal USB port of the scanner may be damaged.

Ficha técnica del equipo

  • Technology: Duplex ADF Scanner
  • Print Speed: 25 ppm
  • Connectivity: USB 3.0
  • Paper Capacity: 50 sheets
  • Compatible Consumable: S500 series rollers and separation pad
  • Recommended Use: Administrative office
  • Official drivers / firmware

Steps to follow

  1. 1

    Change port

    Connect the USB cable to a different port on your computer.

  2. 2

    Check cable

    Ensure the USB cable shows no physical damage.

  3. 3

    Reinstall

    Reinstall the official ScanSnap drivers.

Frequently asked questions

The E-004 indicates an interruption in communication between the PC and scanner via USB port.

It is usually an outdated driver issue or USB ports not providing sufficient power.

While not a consumable, clean moving parts regularly to prevent excessive motor strain.

Avoid using generic USB hubs; connect the device directly to the back port of your PC.