Epson ActionPrinter 4000 User Manual page 128

The Cut Sheet Feeder
Pull the paper set levers all the way forward until the paper
2.
supports retract and lock open to allow for paper loading.
3. Slide the left paper guide to where the fin on the edge guide is
slightly left of the arrow on the panel. Next, slide the right paper
guide so that it roughly matches the width of your paper.
5-6 Using the Printer Options