Epson LT-286 - Manual (Page 75)

WARNING
Never remove a diskette or turn off the computer while the drive
indicator light is an. This might cause lass of data. Also, be sure
to remove all diskettes before you turn off the computer,
Making Backup Copies
Copy all diskettes that contain programs, as you did the master
system diskettes that come with the Equity LT-286. After you make
your copies, store the originals in a safe place away from your
working diskettes and use only the copies.
Chapter 1 describes how to make backup copies of your system
diskettes. For general instructions on copying diskettes or hard disk
files, see Chapter 5 or your MS-DOS manual.
Write-Protecting Diskettes
You can write-protect a diskette to prevent its data from being
altered. When a diskette is write-protected, you can copy data from
it, but you cannot store new data, modify existing data, erase files,
or format the diskette.
The write-protect mechanism is a small switch on the lower-right
corner on the back of the diskette. To write-protect the diskette,
slide the switch down toward the edge of the diskette so there is a
hole where the switch used to be.
Write-protected
I \
Write-protect
switch
Using the Equity LT-286 4-15