An image forming device has a printer capable of selectively setting a
first operation mode to print an image on a medium and a second operation
mode to print an image on the medium, the first operation mode being
different from the second operation mode, and a display unit which
displays an operation screen, and sets an initial value of the operation
mode of the printer to the second operation mode, in a case where a
management mode is designated to manage only the number of pages printed
in the first operation mode by the printer for each division to which
each user belongs. The image forming device displays in the display unit
that the printer is brought into the second operation mode based on the
initial value of the operation mode of the printer in an initial state.