Leds, Ready led, Power led – Brother HL-3450CN User Manual
Page 88: Alarm led, Data led
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CHAPTER 4 CONTROL PANEL OPERATION
4-15
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The lamplights or blinks to indicate the current printer status.
READY LED
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On
Ready to print
Printing
Blinking
Warming up
Off
Off-line
POWER LED
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On
The printer power is on.
Off
The printer power is off.
ALARM LED
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On
An error has occurred in the printer.
DATA LED
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On
Data remains in the printer buffer.
Blinking
Receiving or processing data
Off
No remaining data
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