A printer for printing a barcode by discharging ink droplets from print nozzles that are used for printing bars in the bar code. The printer includes a CPU and a head carriage mechanism. The CPU divides a length of the bars of the barcode into a plurality of segments and changes which of the nozzles that are used as print nozzles in each segment such that the barcode is printed by discharging ink droplets from the print nozzles in each segment. The head carriage mechanism is for moving the print medium relative to the print nozzles. Each bar of the resulting barcode extends in a single, diagonal direction across the plurality of segments. Other printers and printing methods are also provided.