Stacker Lower Safety Failure - Lexmark X850e Service Manual

Step Check
11 Perform a print test.
Does the error still occur?

Stacker lower safety failure

Step Check
1 Check the vertical transport mechanism of the stacker
bin for obstructions and deformation.
Are there any obstructions 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 proper
operation.
Perform the sensor (stacker bin level1) test.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Bin Level.
5. Touch Stacker bin level1.
Does the operator panel display change every time the
sensing area of the sensor (stacker bin level 1) is
blocked by a multiple page document or your finger?
4 Is the sensor (stacker bin level 1) connected properly?
5 Check the sensor (stacker bin level2) for proper
operation.
Perform the sensor (stacker bin level2) test.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Bin Level.
5. Touch Stacker bin level2.
Does the operator panel display change every time the
sensing area of the sensor (stacker bin level 2) is
blocked by a piece of media or your finger?
Yes No
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-195.
Yes No
Remove Go to step 2.
obstructions.
Replace Go to step 3.
deformed part.
Go to step 5. Go to step 4.
Replace the Replace the
sensor (stacker connection.
bin level 1).
Go to "Sensor
(stacker bin
level 1)
removal" on
page 4-111.
Go to step 7. Go to step 6.
Diagnostic information
7500-XXX
2-157