Ricoh Aficio SP 4310N Hardware Manual page 143

2. If the optional duplex unit is attached, push down the lever on the right side of the duplex
unit ( ), and then pull it out until it stops ( ).
1
3. Push the under board levers ( ) and then pull the duplex unit out of the printer ( ).
2
4. Use the envelope lever.
Raising the envelope lever reduces roller pressure.
2
CEE056
1
CEE083
CEE058
Loading Envelopes
6
141