Brother MFC-8420 - Installing the Optional Memory Board

23 - 2 OPTIONAL ACCESSORIES
Installing the optional memory board
WARNI NG
■
DO NOT touch the surface of the main board within 15 minutes
after turning off the power.
■
Before installing the optional memory board, make sure there are
no faxes in the memory.
1
Disconnect the telephone line cord, turn the MFC power switch
off, unplug the MFC power cord from the AC outlet, and then
disconnect the interface cable.
WARNI NG
Turn the MFC power switch off, before installing (or removing) the
memory board.