1. A method of reducing vertical banding in a multi-pass printing process, wherein said multi-pass printing process utilizes a printhead having a plurality of nozzles positioned in a substantially non-linear arrangement along a surface of said printhead, said nozzles being operable to fire an ink drop within a predetermined time in response to receipt of a fire signal during each pass of said multi-pass printing process, said method comprising the steps of: introducing a controlled variance to vary said predetermined time of firing of said ink drop; and fluctuating said controlled variance to vary said predetermined time of firing of said ink drop for each pass of said multi-pass printing process.