Hi to everybody.
I'm an absolute beginner, both in color management and on this forum.
I was checking my R1800 printer (I had to convert from 3MK back to color) and I think that there is still some printhead cleaning to do:
Two copies of the first target, printed at a distance of one day, with the same paper and settings, show:
-some color patches (for example Deep Purplish Pink) have a DeltaE94 of 3.7 and it is evident, even to the naked eye, that they are different.
Being an engineer, I did a quick check to verify that the problem was indeed printer related and not, for example, paper-related.
-The two sheets of paper (Epson Luster) have a DeltaE94 of ~0.3
- If I take multiple measurements of the same spot (without moving the munki) the measurements I get are very consistent:
The DeltaE-94 is < 0.05
-If I move it, even just a little, the DeltaE can be anywhere from .2 to .4
So it seems that different areas of the paper can have color differences that the munki can appreciate.
Is this true ? What is the precision of the munki ?