1. A method for determining a toner usage estimate for a print job to be performed by a printing system having at least two print engines, each of the at least two print engines having at least one corresponding controller, the method comprising: determining a set of print conditions for the print job; selecting a set of parameters associated with the print conditions; determining a second set of parameters from the set of parameters such that the determined second set of parameters substantially influence toner usage on a print engine of the printing system; and estimating a total amount of toner usage for at least one page of a print job utilizing the determined second set of parameters by determining which at least one of the second set of parameters most influences toner usage for a particular print engine of the printing system, wherein the second set of parameters includes job dependent and engine dependent parameters, the job and engine dependent parameters including system purging and photoreceptor position tracking.