Patent ID: 9014581
Filing Date: 2015-04-21
Classification: G03G

Abstract:
1. A toner printer comprising: a print engine; a controller providing first printing instructions to cause the print engine to form a first toner image on a surface having a first toner in a target area and causing the print engine to print the first toner image according to the first printing instructions, wherein the first printing instructions include instructions to form a first toner stack height by combining an amount of the first toner and an amount of a second toner of an average diameter that is different than an average diameter of the first toner; a first light source illuminating the target area of the printed first toner image with a first light from a first illumination position that is on a first side of a plane that is normal to the target area; and a first light sensor sensing light at a sensing position on the first side of the plane to which toner particles at the target area direct a reflected portion of the first light into the first sensor; wherein the controller determines from the sensed light an amount of the first toner in the target area and generates second printing instructions causing the print engine to print at least one subsequent toner image based upon the sensed light, wherein the second printing instructions are determined to cause a second toner image to be provided in combination with the first toner image so that a fused toner image combining the first toner image printed using the first printing instructions and the second toner image printed using the second printing instructions more closely forms the first toner stack height than a fused first toner image and second toner image printed using the first printing instructions.