Led Indication At Service Calls - Brother HL-2440 Service Manual

2.1.2 LED indication at Service Calls

If service calls occur, all four LEDs blink on and off to notice it. And then when press the [Go]
button, distinguish a fault from the specific combination of ON/OFF and status color of the
LED.
When entering this state, instruct the end user to turn off the power switch, wait a few
seconds and the same service call appears, see the reference page to take the corrective
action.
LED Pressing one time of the [Go] button
1-7
Refer
Type of error
to:
13) Main PCB
failure
1-16
14) Fuser unit
failure
1-16
15) Laser unit
failure
1-17
16) Main motor
failure
1-17
17) High-voltage
power
supply PCB
1-17
failure
18) Fan failure
1-17
Confidential