Sensor (Bridge Unit Media Exit) On Jam C - Lexmark W840 Finisher Service Manual

281.02 Sensor (bridge unit media exit) On Jam C

Step Check
1 Check the media path.
1. Open the bridge unit top cover assembly of the
bridge unit assembly.
2. Check the transport belts and the six bridge unit
pinch rolls attached on the bridge unit top cover
assembly by turning them with your fingers.
Are the transport belts and the bridge unit pinch rolls
installed correctly?
2 Are two transport belts and the six bridge unit pinch roll
free of damage?
3 Check the sensor (bridge unit media exit) for correct
operation.
Perform the Bridge media exit test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Bridge media exit.
Does the display on the operator panel change every
time the actuator of the sensor (bridge unit media exit)
is operated?
4 Check the sensor (bridge unit media exit) connection.
Is the above sensor connected properly?
5 Check the bridge unit drive motor by opening the
finisher front door assembly and then closing it.
Does the bridge unit drive motor rotate normally?
6 Check the bridge unit drive motor connection.
Is the above motor properly connected?
7 Perform a test print.
Does the error still occur?
Yes No
Go to step 2. Clean or replace
the transport
belts and bridge
unit pinch rolls,
and clean the
media path.
Go to step 3. Clean or replace
the transport
belts and bridge
unit pinch roll,
and clean the
media path.
Go to step 5. Go to step 4.
Replace the Replace the
sensor (bridge connection.
unit media exit).
See "Sensor
(bridge unit
media exit)
removal" on
page 4-17.
Go to step 7. Go to step 6.
Replace the Replace the
bridge unit drive connection.
motor. See
"Bridge unit
drive motor
assembly
removal" on
page 4-13.
Replace the Problem solved.
bridge unit
interface card
assembly. See
"Bridge unit
interface card
assembly
removal" on
page 4-117.
Go to step 8.
Diagnostic information
4024-XXX
2-17