I think I've read somewhere, maybe on the forums that certain WF printers are known for this issue but no solutions given. If you have the manual, it will normally have a troubleshooting section. If not there, contact Epson directly.
How many papers did you have stacked up? Sometimes paper feed issues happen when you don't have enough paper on the stack.Our epson 7010 was printing fine yesterday and then all of the sudden stopped feeding paper. It feeds about half way and kicks back and tries again. Think might be a sensor, but have found nothing searching the web. Anybody else run into this?