Finisher Communication Failure; Stacker Bin Failure - Lexmark w850 Service Manual

980.02 Finisher communication failure

Step Check
1 Check the printer and finisher installation.
Is the finisher installed to the printer correctly?
2 Turn the power on and off.
Does the error still occur when the power is on?
3 Check the finisher controller card assembly
connection.
Are the connections of the finisher controller card
assembly correctly connected?
4 Perform a test print.
Does the problem remain.

981.00 Stacker bin failure

Step Check
1 Check the vertical transport mechanism of the stacker
bin for obstacles and deformation.
Are the any obstacles in the vertical transport
mechanism of the stacker bin?
2 Is there any deformation in the vertical transport
mechanism of the stacker bin?
3 Check the sensor (stacker bin level 1) for correct
operation.
Perform the sensor (stacker bin level 1) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Bin Level.
5. Select Stacker bin level1.
Does the display on the operator panel change every
time the sensing area of the sensor (stacker bin level 1)
is blocked by a multi page document or your finger?
Yes No
Go to step 2. Remove the
finisher. Go to
"Finisher
removal" on
page
Go to step 3. Problem solved.
Replace the Replace the
finisher controller connection.
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-118.
Go to step 4.
Replace the Problem solved.
printer engine
card assembly.
Refer to the
Printer Service
Manual.
Yes No
Remove Go to step 2.
obstacles.
Replace Go to step 3
deformed part.
Go to step 5. Go to step 4.
Diagnostic information
4024-XXX
4-4.
2-63