To prevent illicitness of printing by urging the inconsistent setting to a user by voice guidance by analyzing consistency of a printing condition such as the function of a printer and the paper size with the setting of a printing condition included in printing data.

A network system has a network constructing means by using an all purpose digital I/F. The information processor and the method are characterized by having a means for selecting the printer suitable for the printing data by taking in the printing function information on the printer connected to a network before printing, a means for analyzing consistency of the printing function information of the selected printer with the setting of a printing form included in the printing data, a means for discriminating the inconsistent setting, a display means of a setting image screen of an inconsistent item, and a means for easily setting the inconsistent item by setting guidance and an on-line help means of the inconsistent item.