My epson CX5200 is almost 2 years old. And has worked flawlessly. I just replaced the ink cartridges (genuine Epson), and now it won't print. I have done clean and nozzle check many times. I even put the old cartridges back in (they had some ink) and they wouldn't print either. The pages are going through, and its making noises like its printing, and the paper comes out, but its blank. I called Epson and they said it is unlikely that 4 ink cartridges would be bad, and that I had a hardware failure----and wanted to sell me a new printer. What troubleshooting can I do to this thing to rule out hardware? Any thing I can manually clean, blow-out, or take apart?