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OPTIONAL ACCESSORIES
15-7
MFC 4550/6550MC/7550MC
OP-US-5.0
1. Unplug the power cord from the AC
outlet and disconnect the interface
cable.
Warning
Unplug the power cord before installing (or removing) the memory board.
LINE
EXT.
Installing the Optional Memory Board
3. To install the memory board onto
the main controller board, use the
attached spacer and plug it into the
lower right connectors of the main
controller board.
LINE
EXT.
Main controller board
Memory
board
Spacer
2. Unscrew the three screws securing
the main controller board plate and
pull out the board.
Warning
Do not touch the surface of the main controller board.
LINE
EXT.
Main controller board
Screw