Epson ActionPrinter 4500 User Manual page 147

6. Insert the stack of paper between the paper guides, aligning it with
the left edge of the guide. Then adjust the right paper guide until
the paper is held firmly, but not so tightly that it causes the paper to
buckle. Make sure the paper can move up and down freely.
The Cut Sheet
Using the Printer Options
Feeder
5-9