Epson Stylus Pro 4000 Reference Manual page 262

1. Make sure that the printer is on and in the READY status.
2. Align the right edge of the paper with the right edge of the
rear manual feed slot until it meets resistance.
The printer automatically feeds the paper to the printing
position.
3. Adjust the length of paper tray and paper tray cover
according to the paper size. If you do not extend them, the
printout may fall.
Note:
Make sure the roll paper support is not raised.
262
Paper Handling