Lexmark C734 Service Manual page 101

Step Questions / actions
5 Check the MPF/duplex gear assembly for
damage.
Are the gears damaged?
6 Replace the MPF/duplex motor assembly.
See "Multipurpose feeder (MPF)/duplex
motor assembly removal" on page
Does the error clear?
Yes
Replace the MPF/duplex
gear assembly. See
"Multipurpose feeder
(MPF)/duplex gear and
housing removal" on
page 4-102.
Problem resolved.
4-104.
5026
No
Go to step 6.
Go to "Input sensor
service check" on
page 2-125.
2-67
Diagnostic information