Epson 5000/5500 - Manual (Page 40)

Using Continuous Paper
4. Slide the left sprocket unit to approximately 12 mm (l/2 inch)
from the far left position and push the sprocket lock lever back
to lock it in place. Then slide the right sprocket unit to match
the width of your paper, but do not lock it. Move the paper
support so it is midway between the sprocket units.
5. Make sure your paper has a clean, straight leading edge. Then
open the sprocket covers and fit the first four holes of the paper
over the sprocket pins.
Paper Handling 2-13