What are you using for color calibration and control?
Many are using nothing which I suggest folk catch up by looking at the Pantone Huey and similar.
Without color calibration and control it's unsure what the output will look like versus the PC screen.
I have a new MG5220. I tried printing from the back using Photo Paper with the right settings in photoshop (paper and high quality). The print came out really messed up. I can tell it can do deep black because areas are fine. But it has strange errors all over it and looks faded.