Patent ID: 9366990
Filing Date: 2016-06-14
CPC Classification: G03G

Claim Text:
1. A method of determining a percentage coverage of extra particulate additives on surfaces of toner particles, comprising: receiving an image of the toner particles; determining a first area of a toner particle surface not covered by extra particulate additives, corresponding to a first brightness threshold; determining at least one other area of a toner particle surface covered by extra particulate additives, corresponding to a second brightness threshold; determining a ratio of the first area to the at least one other area, the ratio corresponding to the relative amount of extra particulate additives on surfaces of toner particles; and adjusting coverage of extra particulate additives on surfaces of toner particles in a printing operation of an imaging device, based on the determined ratio; wherein at least one of the receiving, the determining the first area, the determining the second area, and the determining the ratio is performed automatically; and wherein determining the ratio further comprises