Brother HL 1270N - Manual (Page 38)

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This LED also works as the Toner LED when the Alarm LED is also lit. They will blink
simultaneously to indicate a toner error
. See “How to replace the Toner cartridge” in Chapter
3 .
LED Error Action
Ready
Alarm
Paper
Toner
Data
Drum
Blinking every 5 seconds
Toner low Indicates that the toner cartridge is
nearly empty. Purchase a new toner
cartridge and have it ready for when
Toner empty is indicated.
Ready
Alarm
Paper
Toner
Data
Drum
Toner empty Replace the toner cartridge with a new
one. See “How to replace the Toner
Cartridge” in Chapter 3.