Lexmark X850e Service Manual page 137

Step
4 Check the booklet end guide by moving it manually.
Does the above component slide up and down properly?
5
Check the sensor (booklet end guide HP) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test
4. Touch Booklet Path
5. Touch Booklet end guide HP
Does the display on the operator panel change every time
the sensing area of the above sensor is interrupted or
blocked?
6 Is the sensor (booklet end guide HP) properly connected?
Is the above component properly connected?
7 Check the booklet end guide drive motor for proper
operation.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Tests.
4. Touch Booklet end guide drive motor.
Does the above component operate properly?
8 Is the booklet end guide drive motor properly connected?
Is the above component properly connected?
9 Perform a POR.
Does the error continue when the power is turned off/on?
Check Yes
Go to step 5. Remove
obstructions.
Go to step 7. Go to step 6.
Replace the Replace the
sensor (booklet connection.
end guide HP).
Go to "Sensor
(booklet end
guide HP)
removal" on
page 4-140.
Go to step 9. Go to step 8.
Replace the Replace the
booklet end guide connection.
drive motor.
"Booklet
Go to
end guide drive
motor removal"
on page 4-142.
Replace the Problem solved.
booklet controller
card assembly.
Go to "Booklet
controller card
assembly
removal ??" on
page 4-121.
Diagnostic information
7500-XXX
No
2-79