Lexmark T652 Service Manual page 554

Model T652 and T654 duplex paper path
Functions of main components
When the duplex is installed, duplex (double-sided) printing is available with the printer.
The following outlines the functions of the main components of the duplex.
# Part
1 Standard bin full actuator and sensor
2 Diverter
3 Sensor (fuser output, arrow media)
4 Sensor (duplex input)
5 Pick arm assembly
6 Sensor (option pass through)
7 PC cartridge
8 Sensor (input)
9 PC drum
Appendix C: Theory of operation
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