Lexmark W850n Manual page 103

Step Check
2 Check the sensor (media eject shaft HP) for correct
operation.
Perform the sensor (media eject shaft HP) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path2.
5. Select Media eject shaft HP.
Rotate the media clutch actuator manually by hand.
Does the display on the operator panel change every
time the sensing area of the sensor (media eject
shaft HP)?
3 Check the sensor (media eject shaft HP) connection.
Are the connections of the main sensor cable assembly
correctly connected?
4 Check the for correct operation.
Check the media eject motor assembly by opening the
finisher front door assembly and then closing it.
Does the media eject motor assembly rotate normally?
5 Is the media eject motor assembly connected
properly?
6 Check the media eject clutch assembly by opening the
finisher front door assembly and then closing it. The
three clamp paddles should rotate.
Does the media eject clutch assembly operate?
7 Is the media eject clutch assembly connected
properly?
8 Perform a test print.
Does the error still occur?
Yes No
Go to step 4. Go to step 3.
Replace the Replace the
sensor (media connection.
eject shaft HP).
Go to "Sensor
(media eject
shaft HP)
removal" on
page 4-79.
Go to step 6. Go to step 5.
Replace the Replace the
media eject connection.
motor assembly.
Go to "Media
eject motor
assembly
removal" on
page 4-78.
Go to step 8. Go to step 7.
Replace the Replace the
media eject connection.
clutch assembly.
Go to "Media
eject clutch
removal" on
page 4-77.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-118.
Diagnostic information
4024-110
2-81