Duplex (MFC-9840CDW only)
You can choose whether you want to automatically print on both sides of the printer.
1
For MFC-9840CDW, press
Menu
,
4
,
3
.
2
Press
or
to choose
Off
,
On(Long Edge)
or
On(Short Edge)
.
3
Press
Stop/Exit
.
Page Top
or 
to choose