Stacker Bin Lower Limit Failure - Lexmark W850n Manual

4024-110
Step Check
6 Check the sensor (stacker bin upper limit) for correct
operation.
Perform the sensor (stacker bin upper limit) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Bin Level.
5. Select Stacker bin upper limit.
Does the display on the operator panel change every
time the sensing area of the sensor (stacker bin upper
limit) is blocked?
7 Check the sensor (stacker bin upper limit) connection.
Are the connections of the main sensor cable assembly
correctly connected?
8 Check the stacker bin lift motor assembly by blocking
the lower hole in either of the sensors (stacker bin
level). The stacker bin should lower slightly.
Does the stacker bin lift motor assembly rotate
normally?
9 Check the stacker bin lift motor assembly connection.
Is the connection of the stacker bin lift motor assembly
connected to the finisher controller card assembly
securely?
10 Perform a test print.
Does the error still occur?

981.02 Stacker bin lower limit failure

Step Check
1 Check the media stacker bin actuator for correct
operation.
Is the media stacker bin actuator installed correctly?
Does it enter the sensing area of the sensor (stacker
bin upper limit)?
2-66
Finisher Service Manual
Yes No
Go to step 8. Go to step 7.
Replace the Replace the
sensor (stacker connection.
bin upper limit).
Go to "Sensor
(stacker bin
upper limit) or
sensor (stacker
bin no media)
removal" on
page 4-36.
Go to step 10. Go to step 9.
Replace the Replace the
stacker bin lift connection.
motor assembly.
Go to "Stacker
bin lift motor
assembly
removal" on
page 4-38.
Replace the Problem solved.
printer engine
card assembly.
Refer to the
Printer Service
Manual.
Yes No
Go to step 2. Repair the media
stacker bin
actuator.