e-4-01ScanSnap S1500

Fixing E-4-01 Error on Fujitsu ScanSnap S1500

The Fujitsu ScanSnap S1500 E-4-01 error indicates an anomaly in the main motor or the gear train responsible for driving the document. This error arises when the motor does not reach the expected RPM or encounters unexpected mechanical resistance during rotation. Often, the problem lies in the wear of moving components or internal obstruction.

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Common causes

  • 1Excessive gear resistance due to lack of lubrication.
  • 2Undetected paper obstruction in the input tray.
  • 3Degradation of the separation roller (becomes sticky).
  • 4Electronic failure in the motor rotation sensor.

Solutions

Quick Diagnostics

If you hear humming, clicking, or the scanner suddenly stops when attempting to load paper, the E-4-01 code is a clear sign of strain on the transport system. Diagnose by checking if the rollers have resistance to the touch or if they have hardened over time.

Step-by-step Solution

  1. Fully open the ADF and remove any trapped paper debris.
  2. Gently rotate the feed rollers by hand to verify there is no resistance.
  3. Ensure there is no dirt on visible gears.
  4. Perform a power cycle by disconnecting the unit from the wall for 10 minutes.

Prevention and Maintenance

Replace the feed roller kit periodically according to usage. Avoid exposing the equipment to very hot environments, as gear grease can degrade and cause motor blocks.

When to call a technician

If the E-4-01 error persists after thorough inspection and cleaning, the internal stepper motor might be defective or have damage to the speed sensor (encoder).

Device Technical Specs

  • Technology: Stepper motor scanner
  • Speed: 20 ppm
  • Connectivity: USB 2.0
  • Compatible consumables: ScanAid roller kit
  • Recommended use: Office and administration
  • Official drivers / firmware

Steps to follow

  1. 1

    Remove obstructions

    Open the cover and remove any paper debris preventing motor movement.

  2. 2

    Check rollers

    Rotate the rollers manually to ensure they are not blocked by debris.

  3. 3

    Power cycle

    Disconnect the unit for 5 minutes before trying to power it on again.

Frequently asked questions

Make sure to clear any jammed paper and clean accumulated residues that prevent the rollers from rotating.

The E-4-01 usually indicates excessive load on the motor; if not resolved, it may point to internal mechanical failure.

Regular cleaning of pads and replacement of the original consumables kit prevents motor overexertion.

Do not attempt to force the motor; if it does not rotate freely, seek assistance to avoid permanent damage.

Fixing E-4-01 Error on Fujitsu ScanSnap S1500 | Vimazdev