Brother HL-4200CN - Manual (Page 91)

TROUBLESHOOTING 5 - 2
Power Problems
Symptom Possible Cause Action
No power Is the printer off? Press the I on the power switch to turn the
printer on.
See Turning the Printer On and Off on page
2-4.
Is the power cord loose or disconnected? Turn the printer off and connect the power
cord properly. Turn the printer on again.
Is the printer connected to a correctly rated
outlet/socket?
Connect the printer to an AC power
outlet/socket that you know works. Do not
connect any other equipment to the
outlet/socket. Do not connect the printer to
an auxiliary power outlet on the back of a
computer.
The printer frequently
turns off
Is the power cord loose or disconnected? Turn the printer off and connect the power
cord correctly. Turn the printer on again.
The printer is defective. Turn the printer off immediately, disconnect
the power cord from the outlet/socket, and
contact your dealer or Brother Customer
Service.