Service call indications

If there is an error that cannot be cleared by the user, the printer will show that a service call is needed by lighting up all the LEDs as shown below.
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If you see the service call indication shown above, turn off the power switch, and then turn it back on and try to print again.
If the error is not cleared after turning the power switch off and then back on, press Go and Job Cancel together, the LEDs will light up as shown in the table below to identify the error.
LED error indication
LEDs
Fuser unit failure1
Main PCB failure
Laser unit failure
Main motor failure
High voltage failure
DIMM error
FAN Failure
Back Cover
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Toner
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Drum
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Paper
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Status
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1
If this error occurs, turn off the printer power switch, wait a few seconds, and then turn it on again. Leave the printer for 15 minutes with the power on. If the error occurs again, call your dealer or Brother Customer Service.
For example, the LED indication below shows a fuser unit failure.
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Make a note of the indication, referring to the table on LED error indication, and report the error status to your dealer or Brother Customer Service.
Note Note
Make sure that the front cover is completely closed before you report a service call.