Brother DCP-115C - Manual (Page 6)

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WARNING
This product must be installed near an electrical socket that is easily
accessible. In case of emergencies, you must disconnect the power
cord from the electrical socket in order to shut off power completely.
Caution
To maintain the best print quality, we recommend that you use the
On/Off key to turn off your machine. Do not unplug the power cord
from the electrical socket, unless moving the machine or performing
maintenance. If you need to disconnect your machine from the
power, you will need to set the date and time again. (See Quick
Setup Guide.)