Epson STYLUS PHOTO R2400 Manual page 348

1. Make sure that the printer is on and the power light is not
flashing.
c
2. Open the top printer cover. Then open the front printer cover
completely.
3. Close the top printer cover.
4. Load the thick paper with the printable side facing up.
Note:
Only print one sheet of thick paper at a time.
348
Caution:
Be sure to insert the thick paper while the power is on.
Otherwise, automatic print position adjustment may not take
place after inserting the thick paper.