Epson 4SLC2-50 - Manual (Page 44)

Inserting and Removing Diskettes
To insert a diskette, hold it with the label facing up and the metal
shutter leading into the drive, Slide it into the drive until it clicks
into place.
When you want to remove the diskette, make sure the drive light
is off, then press the release button. When the diskette pops out,
remove it and store it properly.
Caution
Never remove a diskette or reset or turn off the computer while
the drive light is on. You could lose data. Also, be sure to
remove all diskettes before you turn off the computer.
2-12 Using Your Computer