Epson ActionPrinter 4000 User Manual page 129

4. Take a stack of paper and fan it as shown. This keeps the paper
from sticking and ensures that only one sheet feeds at a time.
Tap the side and bottom of the paper on a flat surface to even
the stack.
Note: For best results, use typewriter quality paper. If you
plan to use paper with a glossy or textured surface, test it
before using it to print documents. Do not use multi-part
forms, carbon paper, envelopes, or labels in the cut sheet
feeder.
Using the Printer Options
The Cut Sheet Feeder
5-7