The AFP architecture uses five colour spaces:
CMYK
RGB
LAB
OCA (Object content Architecture)
HLC (Highlight Colour)
In addition, IOCA FS 11 images can also use the YCbCr or the YCrCb colour space.
Object Containers, such as TIFF or PDF, use different sets of colour spaces.
A highlight colour can only be printed when the OCA or HLC colour spaces are used. The other colour spaces will only produce B/W or full colour output.
The Colour Management Module (CMM) uses an output profile for the printer along with an input profile and/or output profile from the application. With these profiles, the five colour spaces of the AFP architecture can be mapped into the Device-CMYK space (colour printer) or Device-Gray space (B/W printer).
A Colour Mapping Table (CMT) can be used to map the OCA colours to shades of gray, to highlight colours, or to full process colours. For example, you can use the OCA colour Blue to print with the blue highlight colour toner. Avoid using the obsolete "Brown/Alternate Colour" model in new applications. All the OCA colours, except White and Colour-of-Medium, can be translated through a Colour Mapping Table. By default, a factory CMT is installed. You can create and install your own CMTs or you can use a CMT which is downloaded with the application.
You have to use the Settings Editor to install Colour Mapping Tables on the hard disk of the print server. The Colour Mapping Table must be contained by an MO:DCA Object Container. The container must use the AFP / MO:DCA format; not the IPDS format. The container format and the format of the CMT are described in detail in the IBM MO:DCA Reference. The extension for the file name must be ".CMT".
You have to use the Settings Editor to delete Colour Mapping Tables from the hard disk of the print server. You must also use the Settings Editor to delete resources which have been captured directly from the host. The factory installed resources, fonts and code pages are protected and cannot be deleted.