A printer performs printing by transferring ink of an ink ribbon on which a plurality of color inks is sequentially arranged to paper, and the printer includes a paper conveyance unit configured to convey paper, an ink ribbon conveyance unit configured to be driven by the same drive source as that of the paper conveyance unit and convey the ink ribbon only in a printing direction, and a detection unit configured to detect a marker for detecting the top of color inks provided on the ink ribbon, wherein a marker of a specific color ink of the ink ribbon includes marker pieces, the number of which is greater than that of the other markers.