Sensor (Lower Media Exit) On Jam B - Lexmark W840 Finisher Service Manual

4024-XXX

284.02 Sensor (lower media exit) on jam B

Step Check
1 Check the media path.
1. Open the finisher front door assembly of the
finisher.
2. Open the lower pinch guide assembly to the right.
3. Open the buffer pinch guide assembly downward.
4. Check the buffer roll assembly by turning the rolls
with your fingers.
Is the buffer roll assembly installed correctly?
2 Is the buffer roll assembly free of damage?
3 Are the buffer pinch guide pinch rolls attached to the
buffer pinch guide assembly correctly?
4 Are the buffer pinch guide pinch rolls free of damage?
5 Check the sensor (buffer path) for correct operation.
Perform the Buffer path test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Buffer path.
Does the display on the operator panel change every
time the actuator of the sensor (buffer path) is
operated?
6 Check the sensor (buffer path) connection.
Is the above sensor connected properly?
7 Check the drive motor (buffer/transport) by opening the
finisher front door assembly and then closing it.
Does the drive motor (buffer/transport) rotate
normally?
8 Check the drive motor (buffer/transport) connection.
Is the above motor connected properly?
2-32
Finisher Service Manual
Yes No
Go to step 2. Clean or replace
the appropriate
roll, and clean the
media path.
Go to step 3. Clean or replace
the appropriate
roll, and clean the
media path.
Go to step 4. Clean or replace
the appropriate
roller, and clean
the media path.
Go to step 5. Clean or replace
the appropriate
roller, and clean
the media path.
Go to step 7. Go to step 6.
Replace the Replace the
sensor (buffer connection.
path). See
"Sensor (buffer
path) removal"
on page 4-93.
Go to step 9. Go to step 8.
Replace the drive Replace the
motor (buffer/ connection.
transport). See
"Drive motor
(buffer/
transport) and
belt (buffer/
transport)
removal" on
page 4-115.