Lexmark T650 Service Manual - Page 201

4062 Step Check 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. CAUTION: : Allow the fuser unit assembly to cool down. 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? Yes No Go to step 5. Go to step 6. Replace the fuser unit assembly. Go to "Fuser unit assembly removal (T650, T652, T654)" on page 4-23. Replace the charge roll assembly. Go to "Access door removal (T650, T652, T654)" on page 4-8. Replace the transfer roll assembly. Go to "Transfer roll assembly removal (T650, T652, T654)" on page 4-78. Go to step 7. Replace the HVPS card assembly. Go to "HVPS card assembly removal (T650, T652, T654)" on page 4-24. Contact next highest level of tech support. Replace the connections. Problem solved. Diagnostic information 2-167