Download the Epson untility
Set it up for the your printer and right click on the task bar Icon. then select reset counters.
Put it to exchange cartridge position remove and replace the carts
switch off ands leave for 5 minutes
fire it up and see if the problem persists
If it does carefully inset a sheet and do a paper feed
switch off and let it rest - start over.
you may also take take look in at
click here- select the Epson forum
you will haver to sign up for a reply.
Also to a search in this forums search files
for example but you could extend that to actual model