Lexmark X790 Series User Manual page 39

Additional printer setup
To install a printer hard disk onto the ISP:
a
Using a flathead screwdriver, loosen the screws.
b
Remove the screws attached to the printer hard disk mounting bracket, and then remove the bracket.
c
Align the standoffs of the printer hard disk to the holes in the ISP, and then press down on the printer hard disk
until the standoffs are in place.
d
Insert the plug of the printer hard disk interface cable into the receptacle of the ISP.
Note: The plugs and receptacles are color‑coded.
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