1. A method of calibrating an imaging system, the method comprising: printing a test patch having a desired test patch appearance; scanning the test patch to identify an initial test patch appearance; determining an appearance-affecting condition; predicting a settled test patch appearance based on the determined appearance-affecting condition and the initial test patch appearance; comparing the predicted settled test patch appearance with the desired test patch appearance to yield a correction factor; and calibrating the imaging system to apply the correction factor to a subsequent printing operation.