Specify values for the targeted ink amounts for CMYK+ channels required to create black.

1. Click the Advanced black controls tab.
2. Set the following values by moving the slider for each:
   • Ink amounts at black: Sets the targeted ink amounts for the cyan, magenta, and yellow channels at the black point of the profile.
   • Black usage at gamut surface: Sets the rate at which black ink is added to chromatic colors along the gamut surface. These controls act similarly to the black start and black generation controls in the basic black controls. There are separate controls for the six cardinal hue regions specified by cyan, magenta, yellow, red, green, and blue regions of a hue circle. The adjustment ranges are from 0 (most delayed use of black) to 1 (start darkening with black directly). Typically setting the control to 1 will produce the maximum color gamut in a region but will introduce black ink at higher lightness colors. In some instances, such as in the yellow region, the addition of black ink produces unwanted dot visibility on light colors. For these cases move the adjustment to lower values to delay the use of black.
3. Click OK or one of the other tabs.