In the case where a negative result is obtained in step S72 (i.e. in the case where there is no next print job), on the other hand, the processor 31 determines whether or not the maximum transport speed of the image forming apparatus (see FIG. 1) is less than the lowest rasterizing speed (step S75).

In the case where the maximum transport speed of the image forming apparatus 10 is equal to or more than the lowest rasterizing speed, the processor 31 obtains a negative result in step S75. In this case, the processor 31 sets the print speed of all the print jobs to the lowest rasterizing speed, and updates display on the display device (step S76). The phrase “all the print jobs” means all the print jobs included in the print list.

In the case where the maximum transport speed of the image forming apparatus 10 is less than the lowest rasterizing speed, the processor 31 obtains a positive result in step S75. In this case, the processor 31 sets the print speed of all the print jobs to the maximum transport speed of the image forming apparatus 10, and updates display on the display device 34 (step S77). This is because the continuous feed paper P may not be transported at a speed exceeding the limit of the performance of the image forming apparatus 10.

The update of display on the display device 34 in steps S76 and S77 is an update of schedule related to the printing of one or a plurality of print jobs allocated to one roll of rolled paper, and includes at least an estimation of the time needed to execute each print job.

When step S76 or S77 is ended, the processor 31 returns to step S1 (see FIG. 3).