Brother 'Toner Life End' / 'Replace Toner' — Toner counter reached

What this error means

The toner cartridge hit its page counter. Brother counts pages rather than measuring remaining toner directly on many models, so cartridges are sometimes declared empty with toner remaining.

Symptoms

• Message with print quality still acceptable
• Printing blocked on some models

Try this first (safe DIY steps)

1. Replace the cartridge — or, if prints still look fine, look up the documented 'continue mode' setting available on many models to keep printing to true depletion
2. Buy the high-yield (TN-xxx HY) variant next time — lower cost per page

Safety: power off before any physical intervention. Never bypass covers or interlocks — fuser areas run hot enough to burn.

When to call a technician

Never — this is a consumable.