Lexmark W850n Manual page 78

4024-110
Step Check
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) connection.
Are the connectors of the diverter gate sensor cable
assembly correctly connected?
11 Check the drive motor (entrance/paddle) for correct
operation.
Check the above motor by opening the finisher front
door assembly and then closing it. Does the motor
(entrance/paddle) rotate normally?
12 Check the drive motor (entrance/paddle) connection.
Are the connections of the main drive cable assembly
correctly connected?
13 Perform a test print.
Does the error still occur?
2-56
Finisher Service Manual
Yes No
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.
Replace the drive Replace the
motor (entrance/ connection.
paddle). Go to
"Drive motor
(entrance/
paddle) and belt
(entrance/
paddle)
removal" on
page 4-100.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-118.