Hi, thanks for your reply! So, you're saying it's not a good idea to create a separate .cal for the profile, I take it? I should instead reprofile when for example ink brands are changed? Cheers, Marcus On October 20, 2011, at 11:34, Phil Cruse wrote: > Hi Marcus, > > I think you've hit the nail on the head! > > On 20 Oct 2011, at 09:18, Marcus Andersson wrote: > >> Hi, >> >> I have a question regarding calibration. Is it really meaningful to produce >> a .cal for an RGB printer with 8 colors? I don't know that much about these >> things but theoretically a CMY linearization on such printers would involve >> all eight colors, right? I am asking as a novice, thanks. > > I can't see how the extra Red, Green, etc., or even the normal Black ink can > be linearized in "RGB". These channels are generated by the printer driver. > > Cheers > > Phil > > Phil Cruse