No one has yet mentioned head cleaning which is what your printer probably needs. Been there, done that - especially after long periods of non-use. Running your ink tanks to the bottom can also cause issues and have had this happen on my Epson Stylus Photo R2000. Its worth a try. Constantly running nozzle cleanings only runs your tanks down and can muck up things even worse.
I've used Printhead Hospital products with excellent results. There's a lot of wait time so be patient. You'll also have to run several prints thru after the cleaning.
Step-by-step videos are also offered on YouTube.
Hope this helps.
- Jeff
