Epson Apex-80 - Manual (Page 20)

For continuous-feed paper, move the edge guides to the far right
and left positions on the paper guide. You won’t be inserting paper
through the edge guides unless you use single-sheet paper.
2. Insert the legs of the paper guide into the slots behind the tractor unit,
keeping the guide tilted backward as you do so. (See Figure 1-14.)
Setting Up 1-13