Data processing device setting one of one or more functions

A data processing device having one or more functions, the device comprising:

• a storing unit that stores various types of data, the storing unit being capable of being recognized, as an external storage device, by an external personal computer, the storing unit being capable of storing instruction data and prescribed data;
• a function implementing unit;
• and
• an interface that:
• is structured to be connected to both the external personal computer and the function implementing unit;
• interfaces the function implementing unit with the storing unit such that the function implementing unit can read and write various types of data;
• and
• when the external personal computer is connected to the interface, interfaces the external personal computer with the storing unit such that the external personal computer can read and write the various types of data from and to the storing unit without being recognized by the function implementing unit,
• wherein the function implementing unit, after the instruction data is stored in the storing unit via the interface by the external personal computer without being recognized by the function implementing unit, automatically reads the stored instruction data from the storing unit via the interface, and determines a process to implement one of the one or more functions corresponding to the read instruction data and executes the determined process,
• wherein after the prescribed data instructing to perform a setting operation for setting one of the one or more functions is stored in the storing unit, the function implementing unit performs the setting operation for setting the one of the one or more functions based on the prescribed data.