| Possible Causes | Solutions |
| Inconsistency gap of the paper going through the die | Adjust the gap by adjusting the regulator on ends of the shaft |
| Uneven wear of anvil cover | Adjust or change it |
| The knife is skew | Repair the die |
| Possible Causes | Solutions |
| Inconsistency gap of the paper going through the die | Adjust the gap by adjusting the regulator on ends of the shaft |
| Uneven wear of anvil cover | Adjust or change it |
| The knife is skew | Repair the die |