Cutter is not a fault with the exclusion of the platen
  
First look at the table is not blocked with debris or books red walls, if there is, please take away, check the paperweight limit sensor is misplaced, if the location does not, adjust the sensor, if all goes well, you need to check the motor and the platen platen encoder and encoder sensors, if there are questions in need of replacement parts, please contact the dealer arrange technician to your door.