Lexmark T650 Service Manual page 201

Step
4 Check the charge roll assembly for contamination and
wear.
Is the above component free of excess wear and
contamination?
5 Check the transfer roll assembly for contamination and
wear.
Is the above component free of excess wear and
contamination?
6 Check the heat roll and pressure roll.
Remove the fuser unit assembly.
Is there contamination or cracks on the heat roll and/or
pressure roll?
7 Check the HVPS card assembly for proper connection.
Is the above component properly connected?
8 Perform a print test.
Does the problem remain?
Check
CAUTION: : Allow
the fuser unit
assembly to cool
down.
Yes
Go to step 5. Replace the
charge roll
assembly.
Go to
door removal
(T650, T652,
T654)" on
page
Go to step 6. Replace the
transfer roll
assembly.
Go to
roll assembly
removal (T650,
T652, T654)" on
page
Replace the Go to step 7.
fuser unit
assembly.
Go to "Fuser
unit assembly
removal (T650,
T652, T654)" on
page 4-23.
Replace the Replace the
HVPS card connections.
assembly.
Go to "HVPS
card assembly
removal (T650,
T652, T654)" on
page 4-24.
Contact next Problem solved.
highest level of
tech support.
Diagnostic information
4062
No
"Access
4-8.
"Transfer
4-78.
2-167