On the Image Options tab.
Note: Some features are only supported by specific printers, operating systems, or driver types (PostScript or PCL). You may see more features or options listed than what your specific system supports.
Change this setting to adjust the overall lightness or darkness of the text and images in your printed documents.
Move the slider to the right to lighten or to the left to darken the text and images in your print job. You can use the arrows or type a number in the box.