Patent ID: 9046851
Filing Date: 2015-06-02
Classification: G03G

Abstract:
1. A method for operating a toner printer, the method comprising: providing first printing instructions to cause a print engine to form a first toner image on a surface having a first toner in a target area; printing a first toner image according to first printing instructions, wherein the first printing instructions include instructions to form a first color by combining an amount of the first toner and an amount of a second toner of a color that is different than the first toner; illuminating the target area 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 so that any toner particles in the target area direct a reflected portion of the first light into the first side; sensing light at a sensing position on the first side of the plane to which toner particles at the target area direct the reflected portion of the first light; determining from the sensed light an amount of a first toner in the target area; and, generating second printing instructions causing the toner printer to print at least one subsequent toner image based upon the determined amount of the first toner, wherein the second printing instructions include instructions to cause a second toner image to be provided in combination with the first toner image so that a fused first toner image printed using the first printing instructions and the second toner image printed using the second printing instructions will more closely form the first color than a fused first toner image and second toner image printed using the first printing instructions.