Epson Stylus R300 previous paper jam?

My Epson Stylus R300 had a paper jam where the paper got stuck near the end of the print. The display read "paper jam...consult manual for instructions". I couldn't find any reference in the manual. I managed to pull the last bit of the sheet out but the display always reads paper jam. When I turn off & then on the maintenance button lights up and when pressed, the rollers in the printer move round quite evenly and it feeds a sheet of paper (and card) through until the last part of the paper when it stops again as in the original jam. I've tried everything suggested on this site....anyone have any other suggestions