Brother MFC-J6920DW - Manual (Page 22)

Chapter 1
8
5 Power On/Off
Press to turn on the machine.
Press and hold down to turn off the
machine. The Touchscreen LCD will show
Shutting Down and will stay on for a few
seconds before turning itself off.
If you have connected an external telephone or
TAD, it is always available.
If you turn off the machine using , it will still
periodically clean the print head to maintain
print quality. To prolong print head life, provide
better ink efficiency, and maintain print quality,
you should keep your machine connected to
the power at all times.