Lexmark T652 Service Manual - Page 170

4062 Step Check 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. Yes Go to step 7. No Go to step 6. 5 6 Check the above sensor for proper connection. Is the above sensor connected properly? Replace the fuser unit assembly. Go to "Fuser unit assembly removal (T650, T652, T654)" on page 4-23. Replace the connection. 7 8 Check the aligner assembly for obstructions. Is the above component free from obstructions? Check the transfer roll assembly for damage. Is the above component free from damage? Go to step 8. Go to step 9. Remove obstructions. Replace the transfer roll assembly. Go to "Transfer roll assembly removal (T650, T652, T654)" on page 4-78. 9 Perform a print test and check the main motor assembly. Is the media properly transported and able to reach the sensor (fuser output)? Go to step 10. Replace the main drive motor assembly. Go to "Output cover assembly removal (T650, T652, T654)" on page 4-54. 10 Perform a print test. Does the problem remain? Contact next highest level of tech support. Problem solved. 2-136 Service Manual