Lexmark X850e Service Manual page 90

7500-XXX
Step Check
4 Check the drive motor (buffer/transport) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Motor Tests.
4. Touch Motor (buffer/transport).
Does the above component operate properly?
5 Check the drive motor (buffer/transport) for proper
connection.
Is the above component properly connected?
6 Check the drive motor (exit) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Motor Tests.
4. Touch Motor (exit).
Does the above component operate properly?
7 Check the drive motor (exit) for proper connection.
Is the above component properly connected?
8 Perform a print test.
Does the error remain?
2-32
MFP Finisher Service Manual
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
Yes No
Go to step 6. Go to step 5.
Replace the drive Replace the
motor (buffer/ connection.
transport).
Go to "Drive
motor (buffer/
transport) and
belt (buffer/
transport)
removal" on
page 4-113.
Go to step 8. Go to step 7.
Replace the drive Replace the
motor (exit). connection.
Go to "Drive
motor (exit)
assembly and
belt (exit)
removal" on
page 4-111.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-116.