Lexmark C520 - Manual (Page 125)

Removing a memory card
125
Installing and removing options
Removing a memory card
1 Locate the card to remove.
2 Push each latch out at each end of the connector.
3 Grasp the option card, and pull it gently out of the connector.
4 Place the memory card in its original packaging, or wrap it in paper and store it in a box for protection.
5 Replace the metal plate. See Replacing the system board metal plate.
Warning: System board electrical components are easily damaged by static electricity.
Touch something metal on the printer before touching any system board
electronic components or connectors.