if its horizontal lines, then its blocked nozzles. if its vertical lines, then its your alignment. if you have tried running head cleans multiple times and still no good, then your print head is probably stuffed = new printer, as cost of head replacement is too expensive for what its worth. If you are using non-epson inks, then that may be your problem. Putting in epson inks sometimes fixes things, but the head may already be damaged due to crappy ink.
Thanks. I am using Epson ink but have used otherwise in the past. I'll have to see.