Lexmark C522 - Manual (Page 121)

Accessing the system board
121
Installing and removing options
To install a memory or flash card, access the system board.
1 Notice the eight screws located on the metal plate. Turn the screws counterclockwise until they are loose. Do not
remove the screws.
2 Lift the metal plate up until each screw is in the keyhole.
3 Pull the metal plate forward to remove it.