Brother HL-2250DN Service Manual page 14

Safety Precautions
Listed below are the various kinds of "WARNING" messages included in this manual.
WARNING
There are high voltage electrodes inside the printer. Before you clean the inside of
the printer or replace parts, make sure that you have turned off the power switch and
unplugged the printer from the AC power outlet.
DO NOT handle the plug with wet hands. Doing this might cause an electrical shock.
The fuser unit becomes extremely hot during operation. Wait until it has cooled down
sufficiently before replacing consumable items. DO NOT remove or damage the
caution label located on or around the fuser.
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