Doest print clearly unless change settings to high quality

I would run a nozzle check (driverless method is to hold Power and Stop, you might need to turn the printer off first) to see if it has any borderline nozzles and check your driver settings - is it on draft, normal or best? With these ET- supertank printers the draft option stopped making sense at all because these print several thousand pages - saving the ink and risking a clog doesn't make sense anymore when black gets you 8,500 pages/6,500 color pages. If the nozzle check is clean, the print settings are the first thing I would do, as well as print a test page to check how well it does - something like an image like this to tell, and use Normal, not Draft. If it were up to me I'd have just made Normal the new Draft and pulled it from the driver. Draft is only there due to psychology reasons now.

If the prints are still weak, there is a clog in the system. Print a few pages which heavily exercise all 4 colors on Best to free the clog up. Run ONE normal cleaning if it continues and try again, especially if you do not regularly exercise the printhead with regular use.

Should that fail, you might need to take the printer apart and manually clean the head with something like PiezoFlush.