A data processor includes a storage unit, a decompressing module, an interface module, and a data retrieving module. The storage unit stores therein a compressed setting data file including setting data files each compressed in a compression format. The decompressing module decompresses a setting data file, in the compressed setting data file, corresponding to a model of a printer selected for printing. The interface module displays a setting screen corresponding to the setting data file decompressed by the decompressing module. The data retrieving module sets print settings based on settings specified on the setting screen.