Brother Printer Error Code E50: How to Fix It

Medium 30-60 minutes Critical Severity Verified June 2026
Error Code
E50
Brand
Brother
Product Type
printer
Severity
Critical
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Brother printer error code E50 indicates a serious mainboard malfunction that requires immediate attention. This critical error typically means the printer's main circuit board has failed or is experiencing communication issues. While some basic troubleshooting steps can be attempted, this error often requires professional repair or mainboard replacement.
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Tools You'll Need

How to Fix Error Code E50

  1. Power cycle the printer completely

    Always unplug the printer before performing any troubleshooting to prevent electrical shock
  2. Check all cable connections

  3. Reset printer to factory defaults

    Factory reset will erase all custom settings including network configurations
  4. Update or reinstall printer firmware

    Never interrupt a firmware update as this can permanently damage the mainboard
  5. Remove and reseat removable components

    Handle toner cartridges carefully to avoid spilling toner powder
  6. Test with minimal configuration

Parts You May Need

Brother mainboard/motherboard
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Power supply unit
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Brother mainboard/motherboard
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Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
Brother mainboard/motherboard
Check Price on Amazon
Power supply unit
Check Price on Amazon
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When to Call a Professional

If the E50 error persists after trying all troubleshooting steps, the mainboard likely needs replacement. Contact Brother support or a certified repair technician. Mainboard replacement requires technical expertise and specialized tools. For printers over 3-4 years old, replacement may be more cost-effective than repair due to the high cost of mainboard components.

Frequently Asked Questions

What causes Brother printer error code E50?
Error E50 is caused by mainboard failures, corrupted firmware, electrical surges, component conflicts, or internal communication errors between the mainboard and other printer components.
Can I fix Brother error E50 myself?
You can try basic troubleshooting like power cycling, firmware updates, and connection checks. However, if these don't work, the mainboard likely needs professional replacement as it requires technical expertise.
Is Brother printer error E50 covered under warranty?
Yes, mainboard failures are typically covered under Brother's standard warranty if the printer is still within the warranty period. Contact Brother support with your printer's serial number to check warranty status.
How much does it cost to fix Brother error E50?
Mainboard replacement typically costs $150-300 depending on the printer model. For older printers, it may be more economical to purchase a new printer rather than repair the mainboard.
Will I lose my printer settings if I reset for error E50?
Yes, a factory reset will clear all custom settings including network configurations, paper settings, and print preferences. You'll need to reconfigure these settings after the reset.