Epson Apex User Manual page 52

When the diskette is all the way in, turn the latch down until
it locks into the vertical position. This keeps the diskette in
place and lets the read/write heads in the disk drive access the
diskette.
To remove the diskette, turn the latch up until it is horizontal.
Carefully pull out the diskette, place it in its protective enve-
lope, and store it properly. Keep your diskettes in a special
diskette container.
WARNING
Never remove a diskette or turn off the computer while the
drive indicator light is on. You could lose data. Also, be sure to
remove all diskettes before you turn off the computer.
Using Your Apex 2-11