Recently, I have been linearizing some profiles for K5 and K4 on a 7900 using PPE2. After two iterations from the installed base curves, I get a near-perfect linear response, as per usual.
Looking at the graph in PPE2, everything looks fine, but when I examined the actual target chart of the “final” iteration, the progression of patches looks a bit “thin.” When I examined the Dmax values in PPE2, the numbers dropped substantially. The first print from a linearized profile has a DMax of 1.79. The final linearized print has a DMax of 1.70. When I look at the details in the .quad, the K channel has a reduction in each iteration too.
Has anyone else experienced this?