Lexmark MS911 Service Manual page 84

Action
Step 7
Replace the sensor. See "Sensor (booklet maker fold exit) removal" on
page 515.
Does the problem remain?
Step 8
a
Make sure that the trifold diverter is properly installed.
b
Check the diverter for damage, and replace if necessary. See
diverter removal" on page
Does the problem remain?
Step 9
a
Make sure that the bifold knife and sliders are properly installed.
b
Check the knife and sliders for wear or damage. See
removal" on page 521.
Does the problem remain?
Step 10
a
Remove the right cover.
b
Test the motor (bifold knife).
Enter the Diagnostics menu, and then navigate to:
Motor Tests > Booklet Maker Motor Tests > Center fold knife
c
Check if the knife and gears are properly moving.
Are they properly moving?
Step 11
a
Reseat the cable on the motor.
b
Make sure that the motor is properly installed.
c
Check the motor and cable for damage, and replace if necessary. See
"Motor (bifold knife) removal" on page
Does the problem remain?
Step 12
Check the bifold knife drive and idler gears for wear or damage, and
replace if necessary. See "Booklet maker—Fold section 1" on page
Does the problem remain?
514.
"Bifold knife
491.
Diagnostic information
Yes
Go to step 8.
Go to step 9.
"Trifold
Go to step 10.
Go to step 12.
Go to step 12.
Go to step 13.
609.
84
4021, 7421
No
The problem is solved.
The problem is solved.
The problem is solved.
Go to step 11.
The problem is solved.
The problem is solved.