Anti-stuck driving devices and printers using the same with malfunction repairing

An anti-stuck driving device comprises:

• a movable blade configured for cutting recording paper;
• a movable blade driving unit comprising a transmission assembly, a motor configured to drive the transmission assembly, and a connecting element connected between the transmission assembly and the motor, wherein the transmission assembly links the movable blade moving back and forth linearly;
• and
• a controller connected to the motor;
• wherein, when the movable blade is stuck, the controller controls the motor to drive the connecting element rotate reversely to separate the transmission assembly and the connecting element, and releases a resistance of the transmission assembly;
• wherein the transmission assembly comprises a first transmission element cooperating with the connecting element, the first transmission element comprises a connecting part located on direction of output shaft of the motor, the connecting element comprises a cooperating part cooperating with the connecting part, the connecting part comprises a first driving surface, the cooperating part comprises a first cooperating surface cooperating with the first driving surface, when the motor rotates forwardly, the first driving surface cooperates with the first cooperating surface, when the motor rotates reversely, the first driving surface separates from the first cooperating surface.