Epson FX-1050 User Manual page 112

4. Insert the 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 bunch).
5. Push the paper set lever back to clamp the paper against the guide
rollers. The lever will not close completely if you use too much
paper. If the lever does not close, remove some paper from the stack
and try again.
Using Printer Options
7-7