Paper cutter if there is no knife phenomenon, one of the reasons is that the internal components of the rust caused by the internal components of the paper cutter to reduce the rusting of the internal components of the paper cutter, we need to do the following points:
 1. Judge from the sound. If the sound of the paper cutter is abnormal, and the sound of the pin not being able to lock the knife bed when the machine is shut down, the function of the paper cutter pin and other components should be checked.
2. Protection from lubrication. To maintain a reasonable maintenance cycle, to maintain the good operation of the paper cutter, we must pay attention to the various operating components and the back end of the body of the right position of the oil filling point connection, do a good job of this filling point lubrication as well as lithium grease lubrication of the normal maintenance.
3. Cultivate from the habit. First, from the workload, from the number of cuts per knife control, to avoid paper cutter overload, overload situation; Second, from the machine itself to consider the lithographic printer, do not make the machine in a state of stagnation for a long time, even if it does not work should be made to work a few strokes of the periodicity, to prevent corrosion of the relevant parts.
In addition to the above mentioned points, at the same time we also need to develop good switching habits, regularly check the condition of the safety components, regularly do a good job of lubrication and maintenance, so as to better protect the paper cutting machine.

Translated with www.DeepL.com/Translator (free version)