I've used qtr with carbon based inks in the past for quite awhile but having some problems now. I had two different Epson 7800's fail on me over the last year and so have had little opportunity to much printing. I finally picked up a third 7800, made new carbon inks based on Paul Roarks recipe, Installed it all, recalibrated my monitor, made new paper profiles using a colormunky and linearization it all, but getting very unsatisfactory results. What comes out of my printer is quite a bit lighter in the mid-tones to the shadows; particularly the shadows ..... not the blackest black per se. Can any one of you out there offer any insite? Could it be that I just goofed up the darker ink dilutions when I originally made them. Anybody got any ideas. I've included a link here that should take you to a page on my site where you can see a visual representation of the difference I'm experiencing. My website is below and you should see the page titled 7800/QTR test in the menu selection on the right side of the screen.
http://patrickturnerphotography.com/
Thanks again for any helpful tips.
Patrick