When I try to install curves I get this error. When I choose the QuadP800-HDK6 printer there are no curves available.
re-install quadtonerip to fix permissions. If it still persists, open terminal the run this command:
sudo chmod -R 777 /Library/Printers/QTR/quadtone
It will ask for you password after hitting return. Then installs will work.
best,
Walker
Success. Thank you! Much appreciated