Lexmark X850e Service Manual page 113

Step Check
2 Check the sensor (front tamper HP) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Media Path 2.
5. Touch Front tamper HP.
Does the display on the operator panel change every time
the sensing area of the above sensor is interrupted or
blocked?
3
Is the sensor (front tamper HP) properly connected?
Is the above component properly connected?
4 Check the front tamper 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 Motor Tests.
4. Touch Front tamper mtr
5. Touch Forward or Reverse.
Does the above component operate properly?
5 Check the compiler unit cable assembly for proper
connection.
Is the above component properly connected?
6 Perform a POR.
Does the error continue when the power is turned off/on?
Yes No
Go to step 4. Go to step 3.
Replace the Replace the
sensor (front connection.
tamper HP).
Go to "Sensor
(front tamper HP)
and sensor (rear
tamper HP)
removals" on
page 4-71.
Go to step 6. Go to step 5.
Replace the media Replace the
compiler unit connection.
assembly.
Go to "Media
compiler unit
assembly
removal" on
page 4-69.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-116.
Diagnostic information
7500-XXX
2-55