In 2005, the failure reasons of mechanical paper cutter with digital display were as follows.

1. Power failure: the paper cutter can't start or suddenly loses power.

2. Tool wear: Tool wear or deformation may lead to uneven cutting or paper jam.

3. Tool rest failure: improper cooperation between tool rest and machine may lead to unclean cutting or damage to the tool.

4. Transmission system failure: The chain or gear in the transmission system is worn or broken, which will also lead to machine failure.

5. Digital display failure: the digital display screen can't display the set value correctly, which may be the problem of the display screen itself.

6. Failure of mechanical parts: The failure of other parts of the machine, such as ordinary swing rod and brake, will affect the cutting effect and safety.