Well... if it's not the cartridge(s), and if it shows up in the nozzle check prints, then your printer's circuitry must have a severe defect. In which case it will require either repair servicing (not free, unless it is less than one year old since its date-of-purchase-new), or else replacement and recycling of this printer.
To locate an Epson service center in your area, go to this pagehttp://www.epson.com/cgi-bin/Store/support/SupportIndex.jsp
and go to the box labeled Service Center Locator at the lower right of that page, and enter
in it and click the Go button, then click on the 'Service Center
' link in the resultant page, and you'll get a popup window, in which you can enter your local zip code, and click 'Find A Servicer'.
If this helps with the problem and answers your question, then please click once on Accept for my Answer. (Only then will I be paid, by deduction of my share from the funds already deposited by you with JustAnswer. Thanks.)
- Favorable feedback is appreciated.