Epson Endeavor 468C - Manual (Page 76)

5. From the front of the computer, grasp the sides of the cover
and pull it straight toward you until it stops, just before it
reaches the front of the computer. Then lift it off at an angle
as shown below.
6. Set the cover aside.
7. Ground yourself to the computer by touching the metal
surface of the back panel.
WARNING
Be sure to ground yourself by touching the back panel of the
computer every time you remove the cover. If you are not
properly grounded, you could generate an electric shock that
could damage a component when you touch it.
Installing and Removing Options 4-5