Epson Endeavor WG - Manual (Page 32)

To insert a diskette into a 5.25-inch drive, hold it with the label
facing up and the read/write slot leading into the drive.
latch
read/write
slot
Slide the diskette all the way into the slot. Then turn the latch
down to lock it in place. This enables the read/write heads to
access the diskette. (Some 5.25-inch diskette drives have a
release button instead of a latch.)
When you want to remove a diskette, first make sure the disk
drive light is off. Then flip up the latch and carefully pull out
the diskette. Place it in its protective envelope and store it in a
proper location, such as a diskette container.
Using Your Computer 1 - 1 5