Epson Stylus 1500 Reference Manual page 22

4. Move the center support to a point midway between the
edge guides.
5. Pull the output tray extension out as far as it will go.
6. Gently extend the rear edge guide of the paper support
until it stops.
7. Fan a stack of paper; then tap it on a flat surface to even the
edges.
output
extension
tray
rear edge
guide
Paper Handling
1-9