Lexmark C522 Manual Do Utilizador

Locate the card to remove.

Push each latch out at each end of the connector.

Grasp the option card, and pull it gently out of the connector.

Place the memory card in its original packaging, or wrap it in paper and store it in a box for protection.

Replace the metal plate. See Replacing the system board metal plate.

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.