Pure Primaries - If your Fiery Server supports this setting, it outputs the primary colors in a job (C only, M only, or Y only) as primary colors, using only a single colorant. The result is pure-looking primary colors, with minimal banding in gradients.

Pure Primaries compromises overall color accuracy. Do not use Pure Primaries if color accuracy is important, such as when printing press proofs.

Quick - If your Fiery Server supports this setting, it applies one-dimensional transfer curves to adjust output densities in the cyan, magenta, yellow, and black channels. This technique leads to eye-pleasing color output because pure primary colors are not contaminated by other colorants. Do not use Quick for final documents that are used as press proofs. Other methods offer better color accuracy.

Full (Source GCR) - Provides a complete and accurate simulation based on colorimetric transformations. Hues are preserved, even for primary colors. The gray component replacement (GCR) level that was specified in the original (source) document is approximated. However in some cases, if the black colorant is not dark enough by itself to render the darkest tones in the source color space, CMY is added to the output black for better color accuracy. Process black expressed in CMY is reproduced using CMY colorants.

This method can be used to preserve pure black objects without converting them to CMYK. However, the Gray (CMYK) option is a more typical method for preserving pure black.

Full (Output GCR) - Provides a complete and accurate simulation based on colorimetric transformations. Hues are preserved, even for primary colors. With this method, the Gray Component Replacement (GCR) level that was specified in the original document is not preserved. Instead, all CMYK data is reseparated using the GCR level specified by the output profile. This simulation technique is similar to traditional ICC color-matching methods and is more appropriate than Full (Source GCR) for full-color printing designed for a traditional press, but reproduced on your printer.