Lexmark X850e Service Manual page 176

7500-XXX
Step Check
4 Are the media entrance pinch guide pinch roll on the
entrance pinch guide assembly and the media
entrance roll assembly free of damage?
5 Check the sensor (bridge unit media exit) for proper
operation.
Perform the sensor (bridge unit 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?
6 Check the sensor (bridge unit media exit) connection.
Is the above sensor connected properly?
7 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?
8 Check the sensor (finisher media entrance)
connection.
Is the above sensor connected properly?
2-108
Options Service Manual
Yes No
Go to step 5. Clean or replace
the appropriate
transport belts
and bridge unit
pinch rolls, and
clean the media
path.
Go to step 7. Go to step 6
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 9. Go to step 8.
Replace the Replace the
sensor (finisher connection.
media entrance).
"Sensor
Go to
(finisher media
entrance)
removal" on
page 4-175.