Lexmark T652 Service Manual - Page 175
Lexmark T652 Manual
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4062 Sensor (duplex input) late jam service check. Use this procedure for the following jams: • 230.02 • 231.00 Step 1 Check Check the door assembly, rear. Is the above component properly closed? Yes Go to step 2. No Open then properly close the door assembly, rear. Open then properly close the fuser access door. Go to step 10 Remove obstructions. Replace the redrive assembly. Go to "Option removals" on page 4-83. 2 3 4 5 Check the fuser access door. Is the above component properly closed? Check media origination. Did the media originate from the internal duplex? Check the internal duplex media path for obstructions. Is the above component free from obstructions? Check the redrive assembly for damage. Is the above component free from damage? Go to step 3. Go to step 4 Go to step 5 Go to step 6 6 Perform a print test and check the redrive motor assembly for proper operation. Does the above component operate properly? Go to step 7. Replace the redrive motor assembly. Go to "Redrive assembly removal (T650, T652, T654)" on page 4-62. 7 Perform a print test and check the duplex drive motor assembly for proper operation. Does the above component operate properly? Go to step 8 Replace the duplex drive motor assembly. Go to "Duplex drive motor assembly removal (T652, T654)" on page 4-19. 8 Check the sensor (duplex input) for proper operation. 1. Enter the diagnostic mode 2. Select Duplex tests 3. Select sensor test 4. Observe the line item "input" Does the display on the operator panel, change every time the sensing area of the above sensor is interrupted or blocked. Go to step 10. Go to step 9. Diagnostic information 2-141