Brother HL-5240 - Manual (Page 57)

4. Control Panel
49
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.
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.
When you press Go and Job Cancel buttons together, the LEDs will light up as shown in the table below to
identify the error.
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 10 minutes with the power
on. If the error occurs again, call your dealer or Brother authorized service representative.
2 If this error occurs, ensure that the DIMM is installed correctly. See Installing extra memory on page 58.
LED indications while pressing Go and Job Cancel
LEDs Main PCB
failure
Fuser unit
failure 1
Laser unit
failure
Main motor
failure
High voltage
failure
DIMM error 2
Toner
Drum
Paper
Status