Lexmark X850e Service Manual page 136

7500-XXX
Step Check
3 Check sensor (bridge unit media exit) for proper
operation.
Perform the Bridge media exit test.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Media Path 1.
5. Touch Bridge media exit.
Open the bridge unit top cover assembly.
Does the operator panel display change every time the
actuator of the sensor (bridge unit media exit) is
operated?
4 Check the sensor (bridge unit media exit) connection.
Is the above senor connected properly?
5 Check the sensor (finisher media entrance) for proper
operation.
Perform the sensor (finisher media entrance) test.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Media Path 1.
5. Touch Fin media ent.
Detach the finisher from the MFP.
Insert a sheet of white media into the finisher media
path entrance.
Does the display change every time a piece of white
media is placed over the sensing area of the above
sensor?
9 Check the sensor (finisher media entrance)
connection.
Is the above sensor connected properly?
7 Check the bridge unit drive motor for proper operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Motor Tests.
4. Touch Bridge unit drv mtr.
Open the top cover on the bridge unit.
Does the bridge unit drive motor operate properly?
2-68
Options Service Manual
Yes No
Go to step 6. Go to step 4.
Replace the Replace the
sensor (bridge connection.
unit media exit).
Go to "Sensor
(bridge unit
media exit)
removal" on
page 4-94.
Go to step 7. Go to step 6.
Replace the Replace the
sensor (finisher connection.
media entrance).
"Sensor
Go to
(finisher media
entrance)
removal" on
page 4-175.
Go to step 9. Go to step 8.