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OPTIONAL ACCESSORIES
15-8
MFC 4550/6550MC/7550MC
OP-US-5.0
Maintenance
Warning
• Hold the edge of the memory board. Do not touch the surface of the board.
• Make sure the memory board is securely seated in the main controller board.
4. Reinstall the main controller board
in the MFC by sliding it into guide
rails.
5. Secure the main controller board
with the three screws.
LINE
EXT.
Main controller board
Screw
6. Reconnect the interface cable.
7. Plug the power cord into the AC outlet.