Lexmark MS911 Service Manual page 87

Action
Step 3
a
Reseat the cable on the motors.
b
Make sure that the motor is properly installed.
c
Check the motors and cables for damage, and replace if necessary.
See "Motor (SHPF feed) removal" on page 356
transport) removal" on page
Does the problem remain?
Step 4
a
Make sure that the SHPF top bin exit sensor actuator is properly
installed.
b
Check the actuator for damage, and replace if necessary. See
(SHPF top bin exit) removal" on page
Does the problem remain?
Step 5
a
Make sure that the sensor (SHPF entrance) and sensor (SHPF top bin
exit) are properly installed.
b
Make sure that the sensors are free of debris or dust.
c
Reseat the cable on the sensors. Check the cable for damage, and
replace if necessary.
d
Check the sensors for damage.
Are the sensors free of damage?
Step 6
a
Test the sensors.
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > Staple and Hole Punch Finisher Sensor Test > Paper
entrance or Top bin exit
b
Toggle the sensor.
Does the sensor status change while toggling the sensor?
Step 7
Replace the damaged sensor. See
page 446 and "Sensor (SHPF top bin exit) removal" on page
Does the problem remain?
Step 8
a
Make sure that the belts and gears connected to the motors are
properly installed.
b
Check the belts and gears for wear or damage, and replace if
necessary. See "SHPF—Transport section 2" on page
Does the problem remain?
and "Motor (SHPF
356.
397.
"Sensor (SHPF entrance) removal" on
581.
Diagnostic information
87
Yes
Go to step 4.
Go to step 5.
"Sensor
Go to step 6.
Go to step 8.
Go to step 8.
397.
Go to step 9.
4021, 7421
No
The problem is solved.
The problem is solved.
Go to step 7.
Go to step 7.
The problem is solved.
The problem is solved.