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2-35 4059 Service Manual
4059-XXX
Duplex Option Service Check
The printer does not recognize the Duplex Option is attached. The
printer does not recognize tray options below the duplex option
are installed.
FRU Action
1 FuseF1onDuplexOption
System Board
If fuse F1 is blown, replace the fuse.
If fuse F1 continues to blow, check
the stepper motor for a short
between the motor case and pins
J3-1 through J3-4. If no problem is
found, check the D.C. servo motor
pins J1-1 and J1-2 to the motor
housing for a short. If a short is
found, replace themotor assembly. If
no short is found, replace the system
board.
2 Autoconnect Cables/
Connectors
Check the autoconnect cables for
damage to the cables or the pins in
the connectors. If damaged, replace
the cable(s). If no damage is found,
check to make sure the cables are
connected to J9, J10, J11 and J12
on the duplex system board. If no
problem is found, replace the duplex
system board.