Patent ID: 8004547

Claim:
A thermal printer comprising: thermal paper, which has a thermosensitive layer on both sides, and is fed in a predetermined direction; a first thermal head, which is provided at a position in the thermal paper feeding direction, and prints one side of the thermal paper; a second thermal head, which is provided at a position apart from the first thermal head in the thermal paper feeding direction, and prints the other side of the thermal paper; a first control section, which selectively executes both-side printing with both thermal heads, and one-side printing with one of the thermal head; a second control section, which previously sets the front end of the thermal paper at a position before the thermal head provided in the upstream in the thermal paper feeding direction, when the first control section executes double-side printing; and a third control section, which previously sets the front end of the thermal paper at a position before the thermal head to be used, when the first control section executes one-side printing.