QTR-Quadtone RIP

You could also print the QTR bullseye target to see if there are any noticeable steps. I made a modified bullseye target with additional gradients so I can see exactly there the black are blocking up or where the white are dropping out. The smooth gradients will show any banding problems that might not be visible in stepped gradients. I use this for testing for problems with any new profile. The gradients at the bottom were made with the posterize adjustement from a smooth 16-bit gradient and I made 10%, 5%, 2%, 1% steps. I made this awhile ago and I think went as far as 256 steps before leaving it as the original smooth 16-bit gradient. It is a 3x4 720dpi 16-bit tiff, and I leave it as that when printing to see just how well i've done making the profile.