G7 is a revolutionary new process that helps commercial printers like The Printery print consistent color with less preparation and less waste.
This new methodology allows printers who maintain a G7 certification to reliably produce highquality commercial printing that matches from proof to press, and from one G7 press to other G7 presses. The Printery has invested in G7 technology, allowing us to have one standard that provides predictable and consistent color without setting up presses according to different methods on a job-by-job basis.

What is G7?

Developed by the IDEAlliance and the GRACoL Committee , G7 is named for its gray scale calibration technique and the 7 ISO ink colors it requires. The “G” refers to calibrating Gray values, while the "7" refers to the seven primary color values: Cyan, Magenta, Yellow, Black (K), Red (M&Y), Green (C&Y) and Blue (C&M). It describes how to use the principles of digital imaging, spectrophotometry, and computer-to-plate (CtP) technologies to achieve these color matches using quality inks and papers. Essentially, G7 is a set of instructions on the methods for calibrating a press or proofing system based on spectrophotometry (colorimetric data) for gray balance instead of traditional densitometric (dot gain/TVI) methods.