Anti-blocking and anti-dragging printer

The utility model discloses an anti-blocking and anti-dragging printer which comprises a machine base, the machine base is connected with a printing module, the printing module comprises a thermal printing head, a cutter assembly and a paper outlet nozzle, the thermal printing head, the cutter assembly and the paper outlet nozzle are sequentially arranged in the movement direction of printing paper, a hinged first elastic piece is arranged on the upper portion in the paper outlet nozzle, and a second elastic piece is arranged on the lower portion in the paper outlet nozzle. A first elastic sheet is arranged at the lower part of the paper outlet, a rotatable second elastic sheet is arranged at the lower part in the paper outlet, a gap for printing paper to pass through is arranged between the first elastic sheet and the second elastic sheet, the printing module further comprises a detection unit, and the detection unit is used for detecting whether the paper outlet has an obstacle or not and/or detecting wheth