e-25fi-6402

Fujitsu fi-6402 Scanner error E-25: Motor Failure

The Fujitsu fi-6402 Scanner error E-25 is a mechanical overload alert for the main ADF motor. It occurs when the document transport mechanism encounters resistance higher than nominal, forcing the motor to stop for safety. If your scanner displays error E-25, there is likely an internal obstruction or rollers have degraded grip due to dust buildup.

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Common causes

  • 1Paper scraps or staples jammed in path.
  • 2Excessive wear on rubber feed rollers.
  • 3Dirt buildup increasing roller friction.
  • 4Main motor revolution sensor failure.

Solutions

Quick Diagnosis

If documents halt halfway or you hear the motor working unusually hard, confirm no staples or sticky labels are in the scan path.

Step-by-Step Solution

  1. Lift the ADF and remove any jammed document.
  2. Clean the feed rollers with a lint-free cloth and isopropyl alcohol.
  3. Verify the roller pressure lever is not jammed.
  4. Reboot the unit to re-initialize the motor.

Maintenance and Prevention

Replace feed consumables as soon as you notice an increase in jams. Keeping the roller area clean prevents dust from turning into an abrasive paste that ruins rubber surfaces.

When to Call a Technician

If the error persists after cleaning, the motor may have internal gear faults or a fried power driver.

Device Technical Specifications

  • Technology: Automatic Document Feeder (ADF).
  • Speed/Performance: 60 ppm.
  • Connectivity: USB 3.0 interface.
  • Input capacity: 100 sheets standard.
  • Compatible consumables: Roller kits for FI-6402.
  • Recommended use: Heavy-duty business scanning.
  • Official drivers / firmware

Steps to follow

  1. 1

    Visual inspection

    Open the lid and check for paper scraps or staples in the path.

  2. 2

    Deep cleaning

    Wipe feed rollers with a lint-free cloth.

  3. 3

    System reset

    Unplug for 1 minute to reset motor drivers.

Frequently asked questions

This code indicates the Automatic Document Feeder (ADF) motor has detected an overload or mechanical jam.

Never use lubricant. Only use cleaning products recommended by Fujitsu or diluted isopropyl alcohol.

Original FI-series replacement rollers must be used to ensure correct torque.

External roller cleaning is suggested every 5,000 pages to prevent dust-induced errors.