I mostly work for web but I'm doing some work for printing and don't want to mess up thousands of fliers.
Part of the design is a graduated fill from black to blue. When I first did it, the onscreen view went to a greyish shade between the black and blue. I fixed this by just setting K on the black to 100%, and C/M/Y all to 0%
Will my black be black when printed? Or should I ignore the grey on the screen preview and do a "rich black" with CMY and K all at 100%?
Thanks for that - it's looking pretty nasty on screen with the rich black values - your suggestion for the blue + 100% key works better, though I still see a middle band of a colour between the two end points.
I think we'll have a printing company selected soon, so I'll get some tips from them.