Maintenance 289
Removing the Optional Hard Disk Unit
IMPORTANT:
• If you remove the optional hard disk unit, be sure to turn off the printer, unplug the power cord, and disconnect all cables from
the rear of the printer before removing the hard disk unit.
1 Turn off the printer.
2 Disconnect the power cord from the power source.
3 Turn the screw on the control board cover counterclockwise.
NOTE:
• Loosen the screw. You do not need to remove the screw.
4 Slide the control board cover towards the rear of the printer and remove the cover.