Lexmark MX421 User Manual page 252

Upgrading and migrating
5
Push the card firmly into place.
Note: The entire length of the connector on the card must touch and be flush against the controller
board.
Warning—Potential Damage: Improper installation of the card may cause damage to the card and the
controller board.
6
Close the access cover.
7
Connect the power cord to the printer, and then to the electrical outlet.
CAUTION—POTENTIAL INJURY: To avoid the risk of fire or electrical shock, connect the power cord
to an appropriately rated and properly grounded electrical outlet that is near the product and easily
accessible.
8
Turn on the printer.
Installing a printer hard disk
CAUTION—SHOCK HAZARD: To avoid the risk of electrical shock, if you are accessing the controller
board or installing optional hardware or memory devices sometime after setting up the printer, then turn
the printer off, and unplug the power cord from the electrical outlet before continuing. If you have any
other devices attached to the printer, then turn them off as well, and unplug any cables going into the
printer.
1
Turn off the printer.
2
Unplug the power cord from the electrical outlet, and then from the printer.
3
Open the controller board access cover.
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