If you wade through these click here you should find a manual for your printer.
Or you could try click here but I think they will want you to pay.
However, most Epson printer cases are held by four screws; two are accessed under the front cover and hold the front to the chassis rail, the others are at the back in deep recessed holes. When you come to remove the cover it should lift easily but ensure it clears the printer head - this it generally will do if the head is parked (normally to the right). You should also ensure that any adjustment (paper thickness) is at the maximum (usually lever to the '+'/upright position) to ensure the lever/mechanism/print head doesn't foul.