Anilox rolls used to be specified by linescreen, then volume. A line work print job would be specified with 360 linescreen rolls, while screen work would use 440s, and process print would be run with 600s at volumes of 5 bcm, 4 bcm, and 3 bcm, respectively. If correct color could not be achieved, or the screen gradient wasn’t consistent throughout the tone range after pressmen tried to make adjustments, then new rolls were specified at the same linescreen, but a different volume, to overcome the particular print problem. This was a time consuming, costly and inefficient way to produce a print job.