Eboni Carbon Printing Diagnosis
When this first happened, I noticed it after an evening of printing when we were walking around on the wood floors in the studio and my first thought, since it came out of nowhere, was that the bounce from us moving around had somehow messed up the print heads. I spent days doing realignment of the heads and messing with it, to no avail. Later, I did find that I had switched inks in a couple of cartridges, and my yellow cartridge was far out of whack (discovered by printing the ink pattern page). I was absolutely confident that was the problem, so it was a major, major frustration to find that even after going back and purging all the cartridges, triple checking that the correct inks are in them, and getting good ink patterns that look just like my original set up, I'm still having the problem.
Last night I tried completely deleting QTR and all profiles and photoshop preferences from the computer and starting over, with a fresh install, thinking that perhaps I'd inadvertently altered the Moab Entrada profile which I'm using to test everything, but that didn't change it at all either. I really am back to wondering if the printer somehow got messed up, but as I've noted, the nozzle checks, print head alignment and every other test I can run on it all appear normal. I'm frankly at a loss.