Epson Apex 20020 - Manual (Page 64)

Follow these additional precautions to protect your hard disk
drive and its data:
Never turn off the computer when the hard disk drive light
is on. This light indicates that the computer is copying data
to or from the hard disk. If you interrupt this process, you
can lose data.
Never attempt to open the hard disk drive. The disk itself
is enclosed in a sealed container to protect it from dust.
If you are going to move your computer, run the HDSIT
program before turning it off. See “Preparing the Hard Disk
for Moving” at the end of this chapter.
Inserting and Removing Diskettes
To insert a diskette into the drive, hold it with the label facing
up and the read/write slot leading into the drive, as shown
below.