US Patent 7273325 Thermal printer and cutter

A thermal printer includes a first module having a motor and a thermal head support member to fix a thermal head, the thermal head support member having a fixed blade part working as a blade and an a second module being detachably coupled with the first module, the second module having a platen roller, a movable blade member and a movable blade member movement mechanism to move the movable blade member, wherein the movable blade member is disposed to face the fixed blade part and driving force of the motor is conveyed to the movable blade member movement mechanism, and thereby a cutter part is formed.