Lexmark W840 Finisher Service Manual page 51

Step Check
2 Is the lower media exit roll assembly free of damage?
3 Check the sensor (lower media exit) for correct
operation.
Perform the Lower media exit test.
1. In 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?
4 Check the sensor (lower media exit) connection.
Is the above sensor connected properly?
5 Check the drive motor (exit) by opening the finisher
front door assembly and then closing it.
Does the motor (exit) rotate normally?
6 Check the drive motor (exit) connection.
Is the above motor connected properly?
7 Perform a test print.
Does the error still occur?
Yes No
Go to step 3. Clean or replace
the lower media
exit roll assembly,
and clean the
media path.
Go to step 5. Go to step 4.
Replace the Replace the
sensor (lower connection.
media exit). See
"Sensor (lower
media exit)
removal" on
page 4-80.
Go to step 7. Go to step 6.
Replace the drive Replace the
motor (exit). See connection.
"Drive motor
(exit) assembly
and belt (exit)
removal" on
page 4-113
Replace the Problem solved.
finisher controller
card assembly.
See "Finisher
controller card
assembly
removal" on
page 4-118.
Diagnostic information
4024-XXX
2-29