Epson Action Laser - Manual (Page 88)

Paper Feed Methods
3. Take a stack of paper and fan it as shown. Next, tap the edges of
the paper on a flat surface to even up the stack.
4. Insert the stack of paper into the paper cassette,
making
sure
that the top of the stack does not cover the red line on the inside
of the paper cassette. Push the paper in gently as far as it can go.
4-8 Paper Handling