Lexmark T650 Service Manual page 164

4062
Step
5 Check the sensor (fuser output) for proper operation.
1. Enter the diagnostic mode
2. Select Base sensor tests
3. Observe the line item "output"
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked.
6 Check the above sensor for proper connection.
Is the above sensor connected properly?
7 Check the aligner assembly for obstructions.
Is the above component free from obstructions?
8 Check the transfer roll assembly for damage.
Is the above component free from damage?
9 Perform a print test and check the main motor assembly.
Is the media properly transported and able to reach the
sensor (fuser output)?
10 Perform a print test.
Does the problem remain?
2-128
Service Manual
Check Yes
Go to step 7. Go to step 6.
Replace the fuser Replace the
unit assembly. connection.
Go to "Fuser unit
assembly
removal" on
page 4-22.
Go to step 8. Remove
obstructions.
Go to step 9. Replace the
transfer roll
assembly.
Go to "Transfer
roll assembly
removal" on
page 4-80.
Go to step 10. Replace the main
drive motor
assembly.
Go to "Output
cover assembly
removal" on
page 4-53.
Contact next Problem solved.
highest level of
tech support.
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