Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
Theres nothing wrong with your ink tanks.. It is your printhead that has failed.. And thankfully its easy and cheap to replace.
You can get a working printhead here for 20$ brand new http://amzn.to/2aj9W0y
That way, you keep all the ink and supplies you have for that printer, repair it. And its print quality should match what it was when you first opened it and used it after you bought it.
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.