Lexmark X850e Service Manual page 120

7500-XXX
Step Check
3 Check the sensor (punch carriage shift HP) for proper
connection.
Is the above component properly connected?
4
Check the punch carriage shift motor assembly for
proper operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Tests.
4. Touch Punch carriage shift mtr.
5. Touch Forward or Reverse.
Does the above component operate properly?
5 Check the punch carriage shift motor for proper
connection.
Is the above component properly connected?
6 Perform a POR.
Does the error continue when the power is turned off/
on?
2-62
MFP Finisher Service Manual
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
Yes No
Replace the Replace the
sensor (punch connection.
carriage shift
HP).
Go to "Sensor
(punch carriage
shift HP)
removal" on
page 4-51.
Go to step 6. Go to step 5.
Replace the Replace the
punch carriage connection.
shift motor
assembly.
Go to "Punch
carriage shift
motor assembly
removal" on
page 4-43.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-116.