Best description would be to imagine a black layer, about 10% opacity, is put onto every print.  I thought that it might be the Black Enhanced Overcoat, which cannot be unselected at print qualities higher than Standard, but even Standard print quality  renders this problem.  I have uninstalled and reinstalled drivers, printed from different computers, and spent no less than 10 hours working with high level Epson Techs to no avail.  There also seems to be a problem with integrated ICC profiles on driver download.  Epson's own papers are missing but for a few. They are about to ship me a 3rd P900 replacement!  Any outside the box suggestions welcome.  
I have printed on the 7900 and 9900 for many years with no problem.
			
			I have printed on the 7900 and 9900 for many years with no problem.
