Safety and legal

To use the machine safely

Please keep these instructions for later reference and read them before attempting any maintenance.

WARNING

There are high voltage electrodes inside the machine. Before you clean the inside of the machine, make sure you have unplugged the telephone line cord first and then the power cord from the AC power outlet.

DO NOT handle the plug with wet hands. Doing this might cause an electrical shock.

Always make sure the plug is fully inserted.

After you have just used the machine, some internal parts of the machine will be extremely hot. When you open the front or back cover of the machine, DO NOT touch the shaded parts shown in the illustration.

The fuser unit is marked with a caution label.

Please DO NOT remove or damage the label.

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Brother MFC-9840CDW manual To use the machine safely