sc-002ADS-4900W

Brother ADS-4900W error SC-002: Image sensor fix

The Brother ADS-4900W error SC-002 is a service code indicating an anomaly in the image sensor or its calibration. If you are asking why does my Brother ADS-4900W show error SC-002, the most likely reason is dust or debris obstructing the scan glass. Follow our cleaning guide to resolve the error and restore your document quality.

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Common causes

  • 1Dust particles or debris accumulated on the CIS sensor strip.
  • 2Glue or adhesive residue from labels on the glass.
  • 3Sensor misalignment due to handling or movement.
  • 4Internal electronics failure of the image sensor module.

Solutions

Diagnóstico rápido

The SC-002 code occurs when the CIS unit (Contact Image Sensor) cannot properly process reflected light. If you notice persistent vertical lines, you have confirmed a dirty scanning glass.

Solución paso a paso

  1. Unplug the device before performing any maintenance inside.
  2. Open the scanner lid and identify the glass strips.
  3. Use a microfiber cloth with a non-abrasive cleaner to wipe the glass until it is crystal clear.
  4. Check the underside for any stubborn spots.
  5. Restart the unit to force a sensor recalibration.

Prevención y mantenimiento

Use document sleeves for old papers. Toner or paper dust buildup is the #1 enemy of scan sensors. Wipe the glass regularly to avoid SC-002 alerts.

Cuándo llamar a un técnico

If the SC-002 error persists after thorough cleaning, the CIS sensor might be physically damaged and requires replacement by a certified technician.

Ficha técnica del equipo

  • Technology: Dual CIS sensor for duplex scanning
  • Resolution: Up to 600 x 600 dpi
  • Maintenance: User-accessible glass strip
  • Compatible consumables: N/A (User maintenance)
  • Recommended usage: Filing and invoicing workflows
  • Drivers / official firmware

Steps to follow

  1. 1

    Open scanner

    Open the top cover of the ADS-4900W to access the glass strip.

  2. 2

    Clean glass

    Use a lint-free cloth and mild, alcohol-free cleaner to remove dust.

  3. 3

    Inspect area

    Check for sticky residue or ink marks on the scanning area.

  4. 4

    Test

    Close the cover and perform a test scan to verify image clarity.

Frequently asked questions

This error points to a CIS image sensor irregularity, usually caused by debris or calibration issues in the scan path.

Yes, deep cleaning the glass strip usually resolves the SC-002 error as debris is the most common cause.

Yes, the SC-002 error often results in vertical lines or blurred areas on your scanned documents.

Weekly cleaning is recommended for high-volume environments to prevent dust buildup that triggers error SC-002.