The present invention is and includes a conversion circuit for allowing a printer controller to send a different set of control signals for dot history control to an integrated circuit driver other than those which the integrated circuit driver is designed to receive. The conversion circuit includes a plurality of driver circuits coupled to a plurality of strobe signals from at least one strobe signal generator, wherein each of the plurality of driver circuits comprises a plurality of gating groups respectively coupled to the plurality of strobe signals, wherein each of the plurality of gating groups includes a plurality of gate units respectively coupled to a plurality of heating elements wherein at least one gate unit controls at least one coupled heating element according to a corresponding strobe signal.