986-Duplex Connection Error 2 Service Check - Lexmark C510 Service Manual

5021-0XX
986—Duplex connection error 2 service check
Step Questions / actions
1 Check duplex unit cable. is
cable properly connected?
2 Check cable connection to
connector DPCN located
on engine controller board.
See "Engine controller
board removal" on
page 4-55
required to remove engine
controller board cover. This
will allow access to DPCN.
Is cable properly
connected?
3 Disconnect cable and
check for continuity
between DPCN connector
and duplex connector
located on back of printer.
Is there continuity?
2-64
Service Manual
for steps
Yes
Replace duplex
unit. See
"Duplex unit
assembly
removal" on
page 4-13. If
problem
persists, go to
step 2.
Go to step 3.
Replace engine
controller board.
See "Engine
controller
board removal"
on page 4-55.
No
Properly connect
cable. If problem
persists, go to
step 2.
Properly connect
cable. If problem
persists, go to
step 3.
Replace faulty
cable.