Use the Z-fold support tray for multi-folding unit.
This will reduce the angle of stacked bundles and prevent bundles flipping over as they are delivered.
For details about using the Z-fold support tray for multi-folding unit, see "About This Machine" supplied with the machine.
If the Z-fold support tray for the multi-folding unit is attached, folded paper such as letter-folded paper or gate-folded paper will not turn over in the output tray when delivered.