Ricoh B246 Series Manual page 265

Inverter
Exit
Roller
Reverse roller: Feeds the paper back
Inverter exit roller: Feeds the paper upwards
In the red circle, it is not easy to see, but the inverter sensor is just past the inverter
roller, so this sensor detects when the paper has just been caught by this roller.
Then, the reverse roller stops and is lifted away from the paper.
Inverter - Feed-out 2
265
Reverse
Roller
Service manual, section 6.13.3
265