<r>Thanks for the advice to date. As it stands I reached out to novachrome for some additional advice which was to print a set of primary CYMK charts using the powerdriver utility and submit them back to novachrome for analysis.<br/>
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During the dialogue it was suggested to test if the problem ...

I'll give them a try and report back on any findings. Cheers.

<r>I have been lucky enough to not encounter any block colour related issued sublimating photographic images onto mugs. However, I have been given a job that has blocks of red in the vector image. I have gone through 10 plus mugs using different tweaks in the image, driver settings, etc, but ...