Ricoh SP 8400DN Field Service Manual page 1378

7.Detailed Descriptions
No.
1 Right cover open/closed switch
2 Duplex entrance sensor
3 Duplex entrance motor
4 Duplex guide switch
5 Duplex/bypass motor
Paper Exit/Reverse Unit
640
Description No.
6 Bypass length sensor
7 Bypass pickup solenoid
8 Bypass width sensor
9 Bypass paper end sensor
10 Duplex exit sensor
Description