What do the LED indications mean?

The technical term for the lights on the front of your Brother machine is Light Emitting Diodes (LED's). This FAQ explains the meaning of those different LED indications.

 

When all the LEDs are off, the power switch is off.

When the Status LED is dimmed (Green), the printer is in Sleep mode. Pressing the Go button wakes up the printer from Sleep mode to Ready mode.


 


 

[LED Indication]

 

The Toner LED alternates turning on for 2 seconds and off for 3 seconds.
The Status LED is on. (Green)

Meaning of LED Indication

 

Toner low:
Indicates that the toner cartridge is near the end of its life. Purchase a new toner cartridge and have it ready for when Replace Toner is indicated.

 


 

[LED Indication]

 

The Toner LED is on.
The Status LED is on. (Red)

 

Meaning of LED Indication

 

Replace Toner:

Replace the toner cartridge with a new one. To see how to replace the toner cartridge, click here.

 

Cartridge error:

The drum unit assembly is not installed correctly. Take the drum unit out of the machine and put it back in.

 

No Toner:

Open the front cover, install the toner cartridge.

 


 

[LED Indication]

 

The Drum LED alternates turning on for 2 seconds and off for 3 seconds.
The Status LED is on. (Green)

                                      
 

Meaning of LED Indication

 

Drum life will end soon:
The drum unit is near the end of its life. We recommend that you obtain a new drum unit to replace the current one. To see how to replace the drum unit, click here.

 


 

[LED Indication]

 

The Drum LED is on.
The Status LED is on. (Green)

Meaning of LED Indication

 

Replace Drum:


Replace the drum unit with a new one. To see how to replace the drum unit, click here.

 


 

[LED Indication]

 

The Paper LED is on.
The Status LED is on. (Red)

Meaning of LED Indication

 

No paper:
Put paper in the tray. Then press Go.
Or clean the paper pick-up roller of the paper tray. Click here to see how to clean the paper pick-up roller.

 


 

[LED Indication]

 

The Paper LED is flashing.
The Status LED is on. (Red).

Meaning of LED Indication

 

No Tray:
The paper tray was not detected. Install it, or ensure it is inserted correctly..

 

Paper jam:

Clear the paper jam. Click here to see how to clear paper jams. If the printer does not start printing, press Go.

 

Incorrect Paper size for auto Duplex:

Press Go or Job Cancel. Set the correct paper that you want to use, or load the same size paper that you selected in the current driver setting. The paper size you can use for automatic 2-sided(duplex) printing is A4, Letter, Legal or Folio.

 

Size mismatch:

Put the same size paper in the paper tray or MP tray that is selected in the printer driver, and then press Go.


 

[LED Indication]

 

The Back Cover LED and Paper LED are flashing.
The Status LED is on. (Red)

Meaning of LED Indication

 

Paper jam (back cover or duplex tray):

Clear the paper jam. Click here to see how to clear paper jams. If the printer does not start printing, press Go.

 


 

[LED Indication]

 

The Back Cover LED is flashing.
The Status LED is on. (Red)

Meaning of LED Indication

 

Duplex disabled:

Close the back cover of the printer and put the duplex tray back in.

 

Fuser cover is open:

Close the fuser cover which can be found behind the back cover of the printer.

 


 

[LED Indication]

 

The Status LED is on. (Red)

Meaning of LED Indication

 

Front cover is open:

Close the front cover of the printer.

 

Too many trays:

Maximum number of optional trays is two. Remove additional trays.

 

Buffer error:
Check the cable connection between the PC and printer.

 

Memory full:

The printer memory is full and the printer cannot print full pages of a document. Click here to see how to solve this problem.

 

Print overrun:

A print overrun occurred and the printer cannot print full pages of a document. Click here to see how to solve this problem.

 

Download full:

The download buffer of the printer is full. Add more memory to the printer. Click here to see how to install additional memory.

 

Font full:

The font memory area is full. Delete fonts or add more memory to the printer. Click here to see how to install additional memory.

 


 

[LED Indication]

 

The Drum LED is on.
The Status LED is on. (Red)

Meaning of LED Indication

 

Drum error:

The corona wire of the drum unit needs to be cleaned. Click here to see how to clean the corona wire of the drum unit.

If your LED's still shows the same error indication after you have cleaned the corona wire, replace the drum unit with a new one. To see how to replace the drum unit, click here.


 

[LED Indication]

 

All the LEDs are flashing.

Meaning of LED Indication

 

Service call:

  • If you see the service call indication shown above, turn off the power switch, wait a few seconds, and then turn it back on and try to print again.
  • If you cannot clear the error and see the same service call indication after turning the printer back on, call your dealer or a Brother authorized service representative.

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

HL-5340D, HL-5350DN, HL-5370DW/HL-5370DWT

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