Lexmark Optra C710 Service Manual page 61

5016-001
Storage of the paper in the duplex unit
The page that is transported from the duplex rear unit pushes on the
gate claw and is stored in the duplex lower tray unit. When the
trailing edge of the page passes through gate claw 2, gate claw 2 is
rotated by the gate claw spring until the gate claw lever touches the
stopper, switching to reverse paper exit mode.
General Information
1-37