Epson EPL-7500 User Manual page 48

Testing the Printer
3. Take a stack of A4 or letter-size paper (high-quality copier
paper is recommended) and 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 exceed the maximum height
mark inside the cassette, as shown below. Gently push the
paper in as far as it will go.
2-8 Testing and Connecting Your Printer