INKJET PRINTING DEVICE AND PRINT-MEDIUM HEATING METHOD OF INKJET PRINTING DEVICE

An inkjet printing device including a transporter that transports a print medium, a printer that discharges ink droplets onto the print medium and a heat roller that includes a peripheral surface with which the print medium comes into contact after printing is provided. The peripheral surface of the heat roller includes a paper contact region and a non-paper region. The device further includes a first heater for the paper region, a second heater for the non-paper region, a target temperature setter that provides a target temperature at the paper region side, and a sensor that measures the temperature at the paper region side. The target temperature and a sensor output are referenced when heating by the first heater is performed, to judge whether supplementary heating of the paper region by the second heater is necessary. If supplementary heating is necessary, the second heater is driven by a drive signal having an intensity that corresponds to a deficient heat amount equivalent value in the paper region.