Use infrared photoelectric protection device. In normal work, to prevent anything from entering under the cutter, no matter any object interrupts the photoelectric screen, the emergency brake will be applied to ensure that the knife does not fall. Double button operation principle. This requires the two buttons to be pressed at the same time, otherwise the cutter motor will not move, which can guarantee the absolute safety of single-person operation. There is also a safety latch device, which is to prevent the paper presser from falling off and causing injury to the operator. However, it is not that these protective devices can be used to ensure the safety of the paper cutter 100%, and the operator needs to be treated with care and careful operation.