Some of the new digital printers work on more than 4 primary colors. For example the HP indigo series of digital printers boast with being able to produce ~98% of all pantone colors. This means that the gamut achieved by these printers are much larger than that of a standard process color device.
But how does one actually prepare a print to use this gamut fully? On desktop printers one is supposed to send a RGB file which is then converted to whatever the printer is using. But then I dont need to preview everything if I can just localy make proofs.
Since the color conversion isn't a one to one kind of business how do i know what will happen, and should i care. Should i send cmyk or rgb and should i just trust my color engine to do a adequate job?
I supose i could just add spot color channels on the images and do a manual separation (been a while). I suppose I could just limit myself to a wide cmyk space. Or should I work in Lab space?