According to my Epson 700 Photo Printer setup, the printer will print up to 8 1/2 inch x 44 inch paper when "User Defined" is selected. According to Epson.com, paper dimensioning (inches or millimeters) is set up in the operating system (Win95/98).
I have not tried continuous printing with UFT or any other program with this particular printer model. But I know from experience that this "Photo" printer is limited to less than a normal print length by design, and sometimes can give a problem even on plain text footers at 8 1/2 x 11".
I picked up a spare good quality like new Epson dot matrix printer at a flea market some time back for $6.00 just in case I think up a use for it some day.