Lexmark Optra S 4059 Series, Service Manual

Page: 65 / 347

Diagnostic Information
2-38
4059-XXX
POST fails with Close Duplex Rear Door displayed when Duplex
Rear Door is closed.
POST fails with Insert Duplex Front Cover message displayed.
FRU Action
1 Rear Door Switch
(Not installed on some
duplex units) Check the rear door for correct
installation and operation. Check to
ensure the cable or connector is not
damaged and is properly connected
at J6 on the duplex system board.
The rear door switch can be checked
by measuring the continuity between
J6-1 and J6-2 on the cable
connector while actuating the rear
door switch. If there is no continuity,
replace the rear door switch
assembly. If there is continuity,
replace the duplex option system
board.
FRU Action
1 Front Cover Switch
(Not installed on some
duplex units) Check the switch for correct
installation and that the jam removal
tray actuates the switch. Check to
make sure the switch cable is
connected to J7 on the system
board. If no problem is found, check
the continuity between J7-1 and J7-2
on the cable connector while
actuating the front cover switch. If
there is no continuity, replace the
front cover switch assembly. If there
is continuity, replace the duplex
option system board.