Patent ID: 8514470

Claim:
The method for calibration of a marking device's output color as measured at the solid area level, the method comprising: selecting a color separation of an n-separation marking device for testing, said marking device having an adjustable actuator which regulates an amount of colorant deposited on a substrate at the solid area level, said adjustable actuator having been previously set to a predetermined first operating point; selecting a target color parameter vector T at the solid area level comprising a point in color parameter space; printing a solid area patch of said target color parameter vector T on a substrate using said marking device with said adjustable actuator having been set to said first operating point and measuring said printed patch to obtain a nominal measured color parameter vector N; determining an amount of an offset to be applied to said adjustable actuator, said amount of offset being based upon said target color parameter vector T, said nominal measured color parameter vector N, and a fleet gradient {right arrow over (G)} F ; and applying said determined amount of offset to said adjustable actuator such that said adjustable actuator is set to a second operating point.