Lexmark X940e Service Manual page 161

Step
3 Check the sensor (registration) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch BASE SENSOR TESTS.
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?
4
Check the sensor (registration) for proper connection.
Is the above component properly connected?
5 Check the duplex diverter gate 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 Duplex diverter gate solenoid.
Does the above component operate properly?
6 Check the duplex diverter gate solenoid for proper
connection.
Is the above component properly connected?
7 Check the duplex 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 Test.
4. Touch Duplex drive motor.
Does the above component operate properly?
8 Check the duplex drive motor for proper connection.
Is the above component properly connected?
Check Yes
Go to step 5. Go to step 4.
Replace the sensor Replace the
(registration). connection.
Go to "Sensor
(registration)
removal" on
page 4-37.
Go to step 7. Go to step 6.
Replace duplex Replace the
media inverter connection.
assembly.
Go to "Duplex
media inverter
assembly removal"
on page 4-9.
Go to step 9. Go to step 8.
Replace duplex Replace the
drive motor. connection.
Go to "Duplex drive
motor removal" on
page 4-13.
Diagnostic information
7510-XXX
No
2-47