Possible causes:
- wrong cutter setting
- cutters are blunt
- watch the sucker unit in front of the 1. cutting operation for too much downwards-bow of the sheet
- adjust bottom stop
- replace worn out sucker or parts
- mount the full range of downholder rings – see picture below!
- they prevent the bowing movement of the sheets
NOTE: The SQM measuring device can only detect “angular” cutting errors!