Lexmark X940e Service Manual page 179

Step
4
Check the pick feed rolls.
Are the pick rolls free of excess wear and contamination?
5 Check the sensor (registration) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch BASE SENSOR TEST.
3. Touch Media Path.
4. Touch Registration.
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked?
6
Check the sensor (registration) for proper connection
connection.
Is the above component properly connected?
7 Check the MPF pick solenoid for proper operation.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch MPF pick solenoid.
Does the above component operate properly?
8
Check the MPF pick solenoid for proper connection
connection.
Is the above component properly connected?
9 Check the MPF/transport drive motor for proper operation.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer motor tests.
4. Touch MPF/transport drive motor.
Does the above component operate properly?
Check Yes
Go to step 5. Clean or replace
the pick rolls.
Go to
removal" on
page
Go to step 7. Go to step 6.
Replace the Replace the
sensor connection.
(registration).
"Sensor
Go to
(registration)
removal" on
page 4-37.
Go to step 9. Go to step 8.
Replace the MPF Replace the
feed unit connection.
assembly.
Go to "MPF feed
unit assembly
removal" on
page 4-8.
Go to step 11. Skip to step 10.
Diagnostic information
7510
No
"Pick roll
4-107.
2-65