RGB PRINTER PROFILES
Some inkjet, toner-based, photographic, and other non-PostScript printers print in RGB mode, meaning the RIP or driver is designed to accept RGB rather than CMYK data. These documents explain how work effectively in Photoshop using RGB data even if the printer prints with CMY, CMYK, CMYKcm (light cyan and light magenta), or some other combination of inks, and how to create an RGB printer profile in i1Profiler.
Using RGB Printer Profiles: Adobe Photoshop CS3/CS4 (Download PDF: 2.4MB)
Using RGB Printer Profiles: Adobe Photoshop CC/CS6 (Download PDF: 2.7MB)
Creating an RGB Printer Profile with i1Profiler (Download PDF: 3.8MB)