I just replaced the printhead and ink assembly, did a linearization check using the supplied piezography quad for my selenium inkset and the p800. The scanned target was light in the shadows and dark in the highlights. I also noticed what appears to be graininess in the midtones. This is most noticeable in the LK LM and Y channels. It also only appears noticeable on Type2 paper, not on HPR. Any idea what this might be?
grain in lk, lm, y channels
test print for below crops
grain in mid tones
grain in mid tones
lots of grain
Little grain