u-0002fi-6800

Fujitsu fi-6800 error u-0002: Cover error

The Fujitsu fi-6800 error u-0002 is a basic status alert indicating that the scanner's top cover is open or the closure sensor is not detecting proper contact. This mechanism is a vital safety measure to prevent injury from moving parts during high-volume scanning.

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Common causes

  • 1Incomplete lid closure.
  • 2Dust blocking lid sensor.
  • 3Worn locking latches.
  • 4Faulty safety sensor circuit.

Solutions

Quick Diagnosis

If the lid is closed but the machine still reports u-0002, a sensor might be obscured by dust or the locking latch might be damaged.

Step-by-Step Solution

  1. Open: Fully open the lid to ensure no paper bits block the closure path.
  2. Close: Shut the lid applying even pressure until the side latches click.
  3. Check: If the error persists, ensure the sensor contact pins are free of industrial dust.

Prevention and Maintenance

Regularly clean the lid closure sensors using compressed air. Avoid slamming the lid to keep the plastic locking hooks intact.

When to call a technician

If cleaning the sensor and closing the lid firmly fails to stop error u-0002, the presence sensor may be faulty and require professional replacement.

Device technical specifications

  • Technology: High-performance scanner
  • Speed: 130 ppm
  • Capacity: 500-sheet ADF
  • Connectivity: USB/SCSI
  • Maintenance: FI-6800MK kit
  • Usage: Archiving centers
  • Official drivers / firmware

Frequently asked questions

Error u-0002 is a safety sensor indicating that the main scanner cover is not locked correctly.

It is not critical; the equipment will simply refuse to operate while it detects an open lid for safety reasons.

There are no consumables for this error; maintenance should focus on the presence sensors.

Ensure you close the main cover firmly until you hear the sensor 'click' into place.