Brother HL-2150N - Manual (Page 57)

Control Panel
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4
Warming up
The printer is warming up.
Cooling down
The printer is cooling down. Wait for a few seconds until the inside of the printer has
cooled down.
Receiving data
The printer is either receiving data from the computer, processing data in memory or
printing the data.
Data remaining in memory
There is remaining print data in the printer memory. If the Ready LED is blinking for
a long time and nothing has printed, press the Go button to print the remaining data
in the memory.
Toner low
Indicates that the toner cartridge is nearly empty. Buy a new toner cartridge and have
it ready for when Toner life end is indicated.
The Toner LED will turn on for 2 seconds and off for 3 seconds.
Toner life end
Replace the toner cartridge with a new one. See Replacing the toner
cartridge on page 62.
Cartridge error
The drum unit assembly is not installed correctly. Take the drum unit out of the
machine and put it back in.
LED Printer status