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G7 Master Seal

G7 is a method for matching color across multiple printing devices, such as printing presses and proofing systems. It can be applied to any printer that has a calibration process that allows control over CMYK inks. These would include web presses, sheet-fed presses, proofing systems, inkjet printers being driven by RIPs. The goal of G7 is to provide visually consistent, repeatable color between different devices (like proofers and printers) as well as different presses, and even different facilities. The emphasis in this specification is on gray balance. Since human vision sees differences in gray more readily than more saturated colors, this specification is more likely to result in successful visual "matching" than merely matching solid ink densities which is typically done for more traditional processes.

A G7 Master Printer status is granted to a physical facility, equipment and systems. The G7 Master Printer qualification is valid for one calendar year and must be renewed annually.