What do the LED indications mean?
 The technical term for the lights on the front of your Brother machine are Light Emitting Diodes (LED's).
  
 This FAQ explains the meaning of those different LED indications.
•  When all the LEDs are off, the machine is in Power Off mode.
•  When the LEDs are on or flashing, an error may have occurred. Check the meaning of the LED indication.Please click here to view all examples of LED indications and click the IMAGE which is similar to the LED indication the machine has.
  

 The Error LED () is off. The Ready LED () is dimmed.

Meaning of LED Indication:
• Sleep The machine is in Sleep Mode. While the machine is in Sleep Mode, the Ready LED () is dimmed, but the machine can still receive data. Receiving a print job will automatically wake up the machine to start printing.  
• Deep Sleep The machine is in Deep Sleep Mode, reducing more power consumption than Sleep mode. While the machine is in Deep Sleep Mode, The Ready LED () is dimmed, but the machine can still receive data. Receiving a print job will automatically wake up the machine to start printing.
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 The Error LED () is off. The Ready LED () is on.

Meaning of LED Indication:
• Ready The machine is ready to print.  
• Printing The machine is printing.
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 The Error LED () is off. The Ready LED () will blink in 1 or 1.5 second intervals.

Meaning of LED Indication:
• Please Wait The machine is warming up.  
• Cooling Down The inside of the machine is extremely hot. The machine will pause its current print job and go into Cooling Down mode. Wait until the machine is in Ready mode.  
• Receiving Data The machine is either receiving data from the computer or processing data in memory.  
• Data Remaining There is remaining print data in the machine's memory. If the Ready LED () is blinking for a long time and nothing has printed, press  to print the remaining data in memory.
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 The Error LED () will blink once in 1.5 seconds intervals. The Ready LED () is on.

Meaning of LED Indication:
• Toner Low The toner cartridge will need to be replaced soon. Buy a new toner cartridge and have it ready for when Replace Toner is indicated. If the printout is faint, hold the drum unit and toner cartridge assembly level with both hands and gently shake it from side to side several times to spread the toner evenly inside the cartridge.  
• Replace Toner (Continue mode) The machine continues printing until the LED indicates Toner Ended.
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 The Error LED () will blink once in 1.5 seconds intervals. The Ready LED () is off.

Meaning of LED Indication:
• Replace Toner (Stop mode) Replace the toner cartridge with a new one.
• > Click here to see how to replace the toner cartridge.
•   
• No Toner The toner cartridge isn't installed into the drum unit correctly when the toner cartridge and drum unit assembly is installed into the machine.
• > Click here to see how to install the toner cartridge and drum unit assembly correctly.
•   
• Toner Ended Replace the toner cartridge with a new one.
• > Click here to see how to replace the toner cartridge.
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 The Error LED () will blink 4 times and turn off for 1 second. The Ready LED () is off.

Meaning of LED Indication:
• Cartridge Error The drum unit and toner cartridge assembly is not installed correctly.
• > Click here to see how to install the drum unit and toner cartridge assembly correctly.  
• Cover is Open Close the top cover of the machine.  
• Out of Memory The machine memory is full and the machine cannot print full pages of a document.> Click here to see how to print full pages of a document from the machine.
•   
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 The Error LED () will blink 3 times and turn off for 1 second. The Ready LED () is on.

Meaning of LED Indication:
• Drum End Soon / Replace Drum Replace the drum with a new one. Reset the drum counter.
• > Click here to see how to replace the drum unit.
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 The Error LED () will blink 3 times and turn off for 1 second. The Ready LED () is off.

Meaning of LED Indication:
• Drum ! The corona wire needs to be cleaned.
• > Click here to see how to clean the corona wire.
•   
• No Drum The toner cartridge is installed in the machine without the drum unit or the drum unit and toner cartridge assembly isn't installed in the machine.
• > Click here to see how to install the toner cartridge and drum unit assembly.
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 The Error LED () will blink twice and turn off for 1 second. The Ready LED () is off.

Meaning of LED Indication:
• Jam Tray Clear the paper jam.
• > Click here to see how to clear "Jam Tray".If the machine does not start printing, press .  
• Jam Inside 1 / Jam Inside 2 / Jam Inside 3 Clear the paper jam.
• > Click here to see how to clear "Jam Inside".If the machine does not start printing, press .  
• Wrong Paper Type The paper in the paper tray isn't suitable for printing. Put A4 or Letter size paper in the paper tray.
• > Click here to see how to put paper in the paper tray.
•   
• No Paper Put paper in the paper tray you are using.
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 The Error LED () and Ready LED () will light up alternately.

Meaning of LED Indication:
• Job Cancel The machine is cancelling the job.
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 The Error LED () is blinking. The Ready LED () is blinking.

Meaning of LED Indication:
• Service Call  
•  There is an error that cannot be cleared by the user.
• > Click here to see what kinds of errors occur.
•   
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