Lexmark W850n Manual page 58

4024-110
Step Check
8 Check the drive motor (buffer/transport) connection.
Is the above motor connected properly?
9 Check the sensor (diverter gate) for correct operation.
Perform the sensor (diverter gate) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path2.
5. Select Diverter gate.
Open the finisher front door.
Move the lower media guide assembly to the right.
Insert a sheet of white media beneath the media
diverter gate. Then push the media to the sensor
(diverter gate).
Does the operator panel display change each time a
piece of media is placed at the front of the sensor
(diverter gate)?
10 Check the sensor (diverter gate) for connection.
Is the above sensor connected properly?
11 Check the sensor (lower media exit) for correct
operation.
Perform the sensor (lower media exit) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Lower media exit.
Open the finisher front door.
Move the lower media guide assembly to the right.
Push a sheet of media into the paper path toward the
sensor (lower media exit).
Does the display on the operator panel change every
time the actuator of the sensor (lower media exit) is
operated?
2-36
Finisher Service Manual
Yes No
Replace the drive Replace the
motor (buffer/ connection.
transport). Go to
"Drive motor
(buffer/
transport) and
belt (buffer/
transport)
removal" on
page 4-115.
Go to step 11. Go to step 10.
Replace the Replace the
sensor (diverter connection.
gate). Go to
"Sensor
(diverter gate)
removal" on
page 4-110.
Go to step 13. Go to step 12.