Techkon SpectroDrive Manual page 52

Measure – GrayGuide (according to Gracol G7™)
The GrayGuide function is a very useful feature when controlling a printing press
according to the Gracol G7™ method, which is especially common in the USA.
It requires the use of an appropriate color bar.
1. "G7™" has to be selected in the section "Gray mode display" in "Settings  System / Soft-
ware", to make the GrayGuide function available in the menu bar.
In the following example the adjustment recommendation (1.) shows, that all of the
three inks CMY have to be increased to match the Gracol targets.
1.
Page 52 Manual TECHKON SpectroDrive Chapter 3 – How to use SpectroDrive