To realize high quality printing by judging the adaptability of kind of a printed body and kind of ink or the like.

A printing device comprises a printing object unit having a printing object and a printing object storing means, an ink unit for storing ink and having an ink storing means, and a printing device main body, wherein stored information on kind of printing object and information on kind of ink are read in the printing device main body to judge the adaptability between the printing object provided in the printing object unit and the ink stored in the ink unit.