Lexmark T650 User Manual page 26

Additional printer setup
5
Align the posts of the plastic tee to the holes in the system board, and then press downward until the tee snaps
into place. Be sure each post of the tee has latched completely, and that the tee is seated firmly onto the system
board.
6
Install the ISP onto the plastic tee. Angle the ISP over the plastic tee, and then approach the plastic tee so that any
overhanging connectors will pass through the ISP opening in the system board cage.
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