My Envy 5020 has suddenly started to have a printing issue. It hase new cartridges but the colour printing - especially Yellow - is very poor or non-existent. I have aligned, cleaned and deep cleaned the heads, but I still get the same problems. These occure whether I print from my PC or as part of the printer test suite. I have reverted tjhe printer to factory settings - same results
Before I throw it in the bin, any suggestions (it is only a couple of years old, and gets little use)
I attach a couple of pictures to show the results of various diagnostic prints (I would have used .pdfs but there seemed
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