Lexmark MX710 series User Manual page 28

Additional printer setup
CAUTION—SHOCK HAZARD: 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
Open the controller board access cover.
2
Using a screwdriver, loosen the screws on the controller board shield.
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