1. An electronic apparatus, comprising: a storage apparatus configured to store a model-specific setting value information containing a model name of machine, a setting item code that is the object for adjusting of the setting value, and an upper limit and a lower limit of a threshold value as an outlier determination condition of the setting value, which is predefined every combination the model name and the setting item, and a self-apparatus setting value information containing a setting value of self-apparatus, the setting item code and the setting value; and a control panel configured to display an adjustment value input screen including a display unit for displaying the upper limit and the lower limit of at least the threshold value of the setting value which is included in the model-specific setting value information and the self-apparatus setting value information every setting item code, the displayed threshold value of the setting value enabling a user to confirm whether or not there is an error in an input setting and enabling detection of the error when the input setting value is significantly different from the threshold value, the displayed value enabling the user to adjust the input value which protects the electronic apparatus against any fault or error operation, and an input unit for inputting a new setting value, and wherein the upper limit and the lower limit of the threshold value are respectively calculated by statistically analyzing the setting values of a plurality of machines every combination the model names and the setting item code according to a given rule.