my Epson printer stopped printing in the middle of a document and now will no longer print. The queue is empty, I have replaced the ink, I have run all the tests (which won't print out), rebooted, called it names, nothing will work. The document is sent to the printer and the printer acts like it's printing but the paper comes out either blank or with little tiny light marks on it. I have run the nozzle cleaning. WF2540