Epson 5000 - Manual (Page 99)

1. Pull the lock levers on the left and right paper guides
forward.
2. Slide the left paper guide until the ridge on the paper guide is
aligned with the triangle mark on the front of the cut-sheet
feeder; then lock the paper guide in place by pushing back
on its lock lever. Next, slide the right paper guide to
roughly match the width of your paper. Slide the paper
support midway between the paper guides.
Using Printer Options 4-7