HID HDPii User Manual page 232

2 Select the Print YMC Under K option to print all black in the designated
Defined/Undefined areas with the Yellow (Y), Magenta (M) and Cyan (C)
Ribbon panels directly beneath the resin black (K) panel. (Note: Select this
option if printing resin black text or barcodes onto a colored background to
provide a more gradual transition between the two.)
OR
Select the Print K Only option to print all black in the designated
Defined/Undefined areas only with the resin black (K) panel or to print resin
black onto a white background to maximize the sharpness of printed text and
barcodes.
HDPii High Definition Card Printer/Encoder User Guide L001130 Rev 1.4
232