So my printer seems to not want to print yellow as true yellow anymore. I checked ink levels and it was about 3/4 full but the yellow is like a dull yellow/gray. Thinking that could have been a defective yellow, I put in a brand new yellow and it's a little better but not much. When I run a test print - the cyan and magenta are fine. I turned the printer on and off - no change.
Do I need to open the back and clean anything out? Thanks!