Epson LT - 286e - Manual (Page 60)

To remove the write protection, move the switch up toward the
center of the diskette to cover the opening.
Using the Hard Disk Drive
Unlike a diskette, a hard disk is rigid and fixed in place. It is
sealed in a protective environment free of dust and dirt. A hard
disk stores data the same way as a diskette, but it works much
faster and has a much larger storage capacity.
You can do almost all your work on the hard disk and copy your
files to diskettes whenever you need to make backups or transfer
data to another computer system. However, to ensure that you
always have plenty of space available, keep only files you use
regularly on the hard disk. Store your other files on diskettes.
Note
You must prepare a new hard disk before using it for the first
time. Perform all procedures in your MS-DOS Installation
Guide.
Caring for the Hard Disk
To avoid damaging your hard disk, take these precautions:
Keep your computer away from magnetic fields, such as
electrical appliances, telephones, and loudspeakers.
Keep your computer in a moderate environment. Hard disks
work best at room temperature and in normal humidity.
Never turn off the computer’s power or remove the hard
disk when the hard disk icon is on. This icon indicates that
the computer is currently copying data to or from the hard
disk. If you interrupt this process, you may lose data.
Using he Equity LT-286e 2-23