Ricoh Pro 8310 - Center Part of the Flap Is Remains Inside; Pointed Flap Envelopes Not Stacked in Correct Order

4.Troubleshooting for Peripheral Units
781
2. If the delivered sheets continue to be curled, use the decurl unit to correct the curl to the opposite
side.
* If this is not possible, switch the settings for ejected sheets between face up and face down.
Pointed Flap Envelopes Not Stacked in Correct Order
Envelopes with pointed (triangular) flaps are not delivered in the correct order, or fall from the exit tray.
Cause
This happens because the trailing edge (tip of the pointed flap) remains inside the paper exit, and the
envelope is not ejected entirely.
Factor 1: Center part of the flap is remains inside
Paper is delivered to the finisher shift tray by pushing out its trailing edge of paper using the exit roller.
Due to the shape of its flap, when the envelope has finished passing the nip of exit roller, the center part
of the flap is still behind. Therefore, the flap tends to remain inside the paper exit.
 [A]: Exit roller pitch
 [B]: Paper exit direction
Factor 2: Cannot be aligned using the end fence because of the pointed shape of the flap
Paper is aligned by using the output jogger and by pushing the trailing edge against the end fence.
However, because of the pointed shape of the flaps, they cannot be pushed completely against the end
fence.