Lexmark Optra C710 Service Manual page 142

5016-001
B Base printer operates incorrectly when paper handling options are
installed.
FRU
1 250/250 Tray
Option
2 Duplex Option
2-76
Service Manual
Action
Go to the "250/250 Dual Paper Tray Service
Check" on page
If a duplex option is installed, remove and
reinstall the option and check for correct
operation. If a malfunction occurs, go to the
"Duplex Unit Option Service Check" on
page 2-120.
2-108.