QTR-Quadtone RIP

Yes, I am using QTR and IP 6.0 with Epson Pro 4000 printer. Two RIPs
have different 
performance.

ImagePrint 6: extremely neutral grayscale, easy to handle, but
difficult to keep shadow 
details when you would like to keep your prints "dark" enough. Does
not provide the 
function of linearization that makes you impossible to create your
own gray icc profiles.

QTR: very good details on shadow, difficult to make accurate curves
for papers to achieve 
neutral gray.

best

Grapher