Canon Scanner Error Codes

Complete Canon Scanner Guide

This guide explains all Canon Scanner error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.

E201
Scanner Lamp Failure
  • Turn scanner off and restart.
  • Check scanner lamp connection.
  • Inspect power supply to scanner unit.
  • Replace lamp assembly if needed.
E202
Communication Error
  • Reconnect USB or network cable.
  • Restart scanner and computer.
  • Reinstall scanner driver.
  • Try different USB port or cable.
E203
Scan Head Position Error
  • Turn scanner off and restart.
  • Check for physical obstruction in scan path.
  • Ensure scanner carriage moves freely.
  • Service scan mechanism if required.
E204
Driver Failure
  • Reinstall scanner driver.
  • Update to latest software version.
  • Restart computer system.
  • Check OS compatibility with scanner.
E205
Scanner Motor Error
  • Restart scanner and retry scan.
  • Inspect motor wiring connections.
  • Check for carriage movement restrictions.
  • Replace motor if faulty.
E206
Calibration Error
  • Clean scanner glass thoroughly.
  • Restart calibration process.
  • Inspect calibration strip for damage.
  • Service scanner if issue persists.
E207
CIS Sensor Failure
  • Power cycle the scanner.
  • Inspect CIS sensor connections.
  • Clean optical components carefully.
  • Replace sensor assembly if needed.
E208
USB Connection Error
  • Reconnect USB cable securely.
  • Try another USB port.
  • Replace damaged USB cable.
  • Restart scanner and computer.
E209
Network Connection Error
  • Verify network cable or Wi-Fi connection.
  • Restart router and scanner.
  • Check IP address settings.
  • Reconnect scanner to network.
E210
Memory Error
  • Restart scanner.
  • Reduce scan resolution.
  • Close unnecessary computer programs.
  • Update scanner firmware.
E211
Document Feed Error
  • Remove jammed paper carefully.
  • Inspect ADF rollers.
  • Reload documents properly.
  • Clean feed rollers.
E212
ADF Sensor Error
  • Clean document feeder sensors.
  • Check sensor wiring.
  • Remove dust and debris.
  • Replace sensor if defective.
E213
Optical Unit Error
  • Restart scanner system.
  • Inspect optical components.
  • Clean mirrors and lenses carefully.
  • Replace optical unit if damaged.
E214
Firmware Error
  • Restart scanner.
  • Update firmware to latest version.
  • Reset scanner settings.
  • Reinstall firmware if necessary.
E215
Internal Hardware Failure
  • Turn scanner off and unplug power.
  • Wait several minutes before restarting.
  • Inspect internal connections.
  • Contact Canon service if error remains.
SCN01
Canon Scanner Not Working
  • Check if the scanner is powered on properly.
  • Verify USB or network connection.
  • Restart scanner and computer.
  • Install or update scanner drivers.
SCN02
Scanner Not Detected by Computer
  • Check USB cable connection.
  • Try another USB port.
  • Reinstall scanner drivers.
  • Restart scanner and computer.
SCN03
Scanning Blank Pages
  • Place document correctly on glass.
  • Close scanner lid fully.
  • Clean scanner glass.
  • Check scan settings.
SCN04
Blurry Scanned Images
  • Clean scanner glass.
  • Increase scan resolution.
  • Ensure document is flat.
  • Check for dirt or smudges.
SCN05
Slow Scanning Issue
  • Reduce scan resolution.
  • Close background applications.
  • Use direct USB connection.
  • Restart scanner.
SCN06
Wi-Fi Connection Problem
  • Check Wi-Fi password.
  • Restart router and scanner.
  • Move closer to router.
  • Redo wireless setup.
SCN07
Scanner Keeps Disconnecting
  • Check Wi-Fi signal strength.
  • Update drivers and firmware.
  • Inspect USB cable.
  • Use wired connection if possible.
SCN08
Files Not Saving
  • Check save location settings.
  • Ensure enough storage space.
  • Verify file permissions.
  • Restart scanning software.
SCN09
Scanner Showing Error Message
  • Restart scanner and computer.
  • Check connections.
  • Update drivers.
  • Check specific error code guide.
SCN10
Scanner Not Responding
  • Check all cables.
  • Restart devices.
  • Reopen scanning software.
  • Reinstall drivers if needed.
SCN11
ADF Not Working
  • Remove jammed documents.
  • Clean ADF rollers.
  • Load documents correctly.
  • Check roller wear or damage.

Frequently Asked Questions


What does SCN01 Canon Scanner Not Ready mean?
Check power connection, ensure scanner is turned on, verify USB or network connection, and restart scanner and computer.
What does SCN02 Device Not Detected mean?
Check USB cable connection, try another USB port, reinstall scanner drivers, and restart scanner and computer.
What does SCN03 Blank Scan Output mean?
Ensure document is placed correctly, close scanner lid fully, clean scanner glass, and check scan settings.
What does SCN04 Blurry Scan Output mean?
Clean scanner glass, increase scan resolution, ensure document is flat, and check for dust or smudges.
What does SCN05 Slow Scanning mean?
Reduce scan resolution, close background applications, use direct USB connection, and restart scanner.
What does SCN06 Wi-Fi Connection Failure mean?
Verify Wi-Fi password, restart router and scanner, move closer to router, and redo wireless setup.
What does SCN07 Scanner Keeps Disconnecting mean?
Check signal stability, update drivers and firmware, inspect USB cable, and use wired connection if possible.
What does SCN08 Files Not Saving mean?
Check save location settings, ensure enough storage space, verify file permissions, and restart scanning software.
What does SCN09 Scanner Error Message mean?
Restart scanner and computer, check connections, update drivers, and check specific error code guide.
What does SCN10 Scanner Not Responding mean?
Check all cables, restart devices, reopen scanning software, and reinstall drivers if needed.
What does SCN11 ADF Not Working mean?
Remove jammed documents, clean ADF rollers, load documents correctly, and check roller wear or damage.
What does SCN12 System Reset Required mean?
Power off scanner, wait 30–60 seconds, restart system, and test scanner functionality.
What does SCN13 Communication Failure mean?
Check USB or network cable, restart scanner and computer, try another port, and update firmware if needed.
What does SCN14 Overheating Warning mean?
Turn off scanner, allow cooling, clean vents, and ensure proper ventilation around device.
What does SCN15 Power Failure mean?
Check power cable, test outlet, inspect adapter, and replace power supply if needed.
What does SCN16 Firmware Error mean?
Update firmware, reset scanner settings, reinstall firmware, and restart device.
What does SCN17 Image Quality Issue mean?
Clean scanner glass, adjust resolution, check lighting, and ensure document is properly aligned.
What does SCN18 Network Connection Lost mean?
Restart router, reconnect Wi-Fi, check network stability, and update network settings.
What does SCN19 General System Failure mean?
Restart scanner, unplug power for 30–60 seconds, check internal cables, and contact support if issue persists.
What does SCN20 Maintenance Required mean?
Clean scanner glass, check rollers, run calibration, and service scanner if needed.
Important: Always disconnect power before performing repairs. Contact a qualified technician if the issue persists.