Digital Color Proofing -- Proof or Consequences

Many of these machines are ink-jet devices that use multi-density, multi-color ink sets, which is both a potential benefit and a concern for their use in proofing applications. The standard in ink-jet printers quickly is becoming six-color systems that add light cyan and magenta to the basic CMYK colors, but some offer alternative colors such as orange and green. In either case, the machine's reproducible color range exceeds that of the typical press. That's where the proofing-specific RIPs and materials come in to play.