u-05fi-7480

Error U-05 Fujitsu fi-7480: Technical Diagnosis

The Fujitsu fi-7480 error U-05 informs the user that the scanner detected an incompatible document length or a feed error during scanning. This occurs when the length sensor detects an unexpected change in size, or when the document tilts. It is a configuration alert usually resolved by adjusting scanning parameters.

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Common causes

  • 1Incorrect paper size setting in the software.
  • 2Skewed documents deceiving the length sensor.
  • 3Dirt on paper edge sensors.
  • 4Worn-out traction rollers causing irregular feed.

Solutions

Quick Diagnosis

The U-05 error triggers when the actual paper length differs from what the software expects. If you scan mixed documents without enabling automatic size detection, this is why my Fujitsu fi-7480 show error U-05 constantly. Check if documents are perfectly aligned.

Step-by-Step Solution

  1. In the scanning software, set size detection to 'Auto' or 'Actual document size'.
  2. Adjust the input tray side guides so the paper does not move during feeding.
  3. Clean the length sensors (photoelectric cells) with compressed air or a dry cloth.
  4. Restart the application to refresh the size configuration.

Prevention and Maintenance

Use 'PaperStream IP' software to optimize automatic detection. If you scan very different document sizes, try to group them or use separators. Regular cleaning of sensors ensures accurate readings.

When to Call a Technician

If the U-05 error persists after correctly configuring the software and cleaning sensors, a length sensor may be defective and requires replacement by technical support.

Device Specifications

  • Technology: High-speed ADF scanner.
  • Speed/Performance: 80 ppm.
  • Connectivity: USB 3.0.
  • Feeding Capacity: 100-sheet tray.
  • Compatible Consumables: Original Fujitsu Roller Kit.
  • Recommended Use: Intensive digitization of documents.
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Size Verification

    Ensure the paper size set in the software matches the actual document size.

  2. 2

    Guide Alignment

    Verify that the side guides are firmly adjusted to the document edge to prevent tilting.

  3. 3

    Sensor Cleaning

    Clean the scanner's paper length sensors to ensure accurate detection.

Frequently asked questions

The U-05 indicates the scanner detected a paper length discrepancy during the scanning process.

It is a configuration or sensor failure that prevents completing the scan batch, but is easy to resolve.

No special consumables are required for this error; a Roller Kit is enough to maintain constant traction.

Make sure to configure the paper size correctly in your scanning software (PaperStream Capture).