A substrate heating system for an inkjet printhead. The substrate heating system includes heating resistors distributed in association with the ink jet nozzle structures, and located thermally adjacent thereto. The plural switching transistors that control the current through the substrate heating resistors are also distributed with the ink jetting nozzle structures, together with the substrate heating resistors. Polysilicon is used in constructing the substrate heating resistors. Cells of the substrate heaters can be arranged physically in a linear manner, along the nozzle structures. The substrate heater cells can be controlled so that the temperature of various zones of nozzle structures can be controlled.