The simplest method is to load up the Roland spot color library in Flexi and use them when designing. (in Flexi 6.5 I believe you can have only one color library open at once). Load up the corrosponding spot color in the PC600 and your printing with spot colors.
If you reload with third party ribbons, things get a bit trickier. Try:
http://zeronine.com/rtrouble.html for a bit more info on third party ribbons. Also be a good idea to join up at the Roland discussion forum for the PC600, lots of good info there.[ote]
THANK YOU FOR THE HELP I AM NEW ON THIS I AM USING THE UNIT ONLY FOR CUTTING MY AIRBRUSH STENCILS AND I AM CUIRIOS ON HOW THE PRINTING WORKS I GOT SOME PROCESS CARTRIDGES AS WELL A SPOTS ONES