Lexmark X850e Service Manual page 71

Step Check
2 Check the sensor (bridge unit media exit) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Media Path 1.
5. Touch Bridge unit media exit.
Does the display on the operator panel change every
time the sensing area of the above sensor is
interrupted or blocked?
3 Check the sensor (bridge unit media exit) connection.
Is the above sensor properly connected?
4
Check the bridge unit 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 Finisher Motor Tests.
4. Touch Bridge unit drive motor.
Does the above component operate properly?
5 Check the bridge unit drive motor connection.
Is the above component properly connected?
6 Perform a print test.
Does the error remain?
Yes No
Go to step 4. Go to step 3.
Replace the Replace the
sensor (bridge connection.
unit media exit).
Go to "Sensor
(bridge unit
media exit)
removal" on
page 4-17.
Go to step 6. Go to step 5.
Replace the Replace the
bridge unit drive connection.
motor assembly.
Go to "Bridge
unit drive motor
assembly
removal" on
page 4-13.
Replace the Problem solved.
bridge unit
interface card
assembly.
Go to "Bridge
unit interface
card assembly
removal" on
page 4-115.
Go to step 7.
Diagnostic information
7500-XXX
2-13