Lexmark W850n Manual page 89

Step Check
2 Check the sensor (stacker bin no media) for correct
operation.
Perform the sensor (stacker bin no media) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Bin Level.
5. Select Stacker bin no media.
Does the display on the operator panel change every
time the sensing area of the sensor (stacker bin no
media) is blocked?
3 Is the sensor (stacker bin no media) connected
properly?
4 Check the sensor (stacker bin level 1) for correct
operation.
Perform the sensor (stacker bin level 1) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Bin Level.
5. Select Stacker bin level1.
Does the display on the operator panel change every
time the sensing area of the sensor (stacker bin level 1)
is blocked by a multi page document or your finger?
5 Is the sensor (stacker bin level 1) connected properly?
6 Check the sensor (stacker bin level 2) for correct
operation.
Perform the sensor (stacker bin level 2) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Bin Level.
5. Select Stacker bin level2.
Does the display on the operator panel change every
time the sensing area of the sensor (stacker bin level
rear) is blocked by a multi page document or your
finger?
7 Is the sensor (stacker bin level 2) connected properly?
Yes No
Go to step 4. Go to step 3.
Replace the Replace the
sensor (stacker connection.
bin no media).
Go to step 6. Go to step 5.
Replace the Replace the
sensor (stacker connection.
bin level 1). Go to
"Sensor
(stacker bin
level 1)
removal" on
page 4-34.
Go to step 8. Go to step 7.
Replace the Replace the
sensor (stacker connection.
bin level 2). Go to
"Sensor
(stacker bin
level 2)
removal" on
page 4-34.
Diagnostic information
4024-110
2-67