Here are a few suggestions:
- Check your tape tension to make sure it is the same across the width of the delivery section. You may want to set the lower tapes tighter to support the sheet.
- Make sure the pinch of the overlap carriage or “stop” wheels are set properly. The nip should be snug to the touch when pulling on sheets in the overlap area.
- Also check the alignment of the overlap carriage or “stop” wheels across the width of the sheeter. The settings can be misaligned after a jam up. Measure the distance from the last, bottom high speed roll to the overlap carriage on the drive and operator sides.
- Experiment with edge turners and crimpers to add more corrugation to the sheet. These will steer the sheets into the stacker.