Lexmark MX510
Turn off the printer.
Unplug the power cord from the electrical outlet.
Remove the extra flash memory.
Connect the power cord to a properly grounded electrical outlet.
Turn the printer back on.
Lexmark MS310, MS410, MS510, MS610, & MS611 ? Tips for Moving Printers with Installed Paper Tray Options
Finisher Options Disappear from the Printer Driver's List of Currently Installed Options