Lexmark W840 Finisher Service Manual page 57

Step Check
9 Check the sensor (diverter gate) for correct operation.
Perform the Diverter gate test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path2.
5. Select 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 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.
Does the display on the operator panel change every
time the actuator of the sensor (lower media exit) is
operated?
12 Check the sensor (lower media exit) connection.
Is the above sensor connected properly?
13 Perform a test print.
Does the error still occur?
Yes No
Go to step 11. Go to step 10.
Replace the Replace the
sensor (diverter connection.
gate). See
"Sensor
(diverter gate)
removal" on
page 4-110.
Go to step 13. Go to step 12.
Replace the Replace the
sensor (lower connection.
media exit). See
"Sensor (lower
media exit)
removal" on
page 4-80.
Replace the Problem solved.
finisher controller
card assembly.
See "Finisher
controller card
assembly
removal" on
page 4-118.
Diagnostic information
4024-XXX
2-35