Lexmark MS711 - Page 182

Action Yes No
Step 9
Remove the three screws securing the main motor. POR the machine and
check if the main motor runs.
Does the main motor run?
Go to step 13. Go to step 10.
Step 10
Do a feed test. Enter Diagnostics Menu and navigate to:
FINISHER TESTS > Feed test
Does the main motor run?
Go to step 11. Replace the stapler
main motor. See
“Stapler main motor
removal” on page
750
Step 11
Open the top cover and do the following:
a Check the left media stack flap for damage.
b Make sure the left media stack flap is properly seated and aligned.
c Check if the left media stack flap has no problem moving.
Is the left media stack flap functional and free of damage?
Go to step 12. Replace the finisher.
See “Staple, hole
punch finisher option
removal” on page
738.
Step 12
Open the top cover and do the following:
a Check the right media stack flap for damage.
b Make sure the right media stack flap is properly seated and aligned.
c Check if the right media stack flap has no problem moving.
Is the right media stack flap functional and free of damage?
Go to step 13. Replace the finisher.
See “Staple, hole
punch finisher option
removal” on page
738.
Step 13
Open the left cover, reseat all connectors on the stapler controller PCBA
and then POR the machine.
Does the error remain?
Replace the stapler
controller PCBA. See
“Stapler controller
PCBA removal” on
page 749.
If the error persists,
then go to step 14.
The problem is solved.
Step 14
Open the left cover, reseat all connectors on the HPU controller PCBA,
and then POR the machine.
Does the error remain?
Replace the finisher
option. See “Staple,
hole punch finisher
option removal” on
page 738.
The problem is solved.
4063
Diagnostic information
182