Lexmark T652 Service Manual - Page 176

4062 Step Check Check the above sensor for proper connection. Is the above sensor connected properly? Yes Replace the Sensor (duplex input). Go to "Sensor (duplex input) removal (T652, T654)" on page 4-68. No Replace the connection. 9 10 Perform a print test and check the duplex drive motor assembly for proper operation. Does the above component operate properly? Go to step 14. Replace the duplex drive motor assembly. Go to "Duplex drive motor assembly removal (T652, T654)" on page 4-19. 11 12 Check the external duplex media path for obstructions. Is the above component free from obstructions? Check the external duplex unit assembly for proper installation. Is the above component properly installed? Go to step 12 Go to step 13. Remove obstructions. Remove then properly re-install the external duplex unit assembly. Replace the external duplex assembly. 13 Check the sensor (duplex input) for proper operation. 1. Enter the diagnostic mode 2. Select Duplex tests 3. Select sensor test 3. 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 14. 14 Perform a print test using the duplex. Does the problem remain? Contact next highest level of tech support. Problem solved. Sensor (duplex input) lingering jam service check. Use this procedure for the following jams: • 230.01 • 230.05 • 232.00 Step 1 Check media origination. Check Yes Go to step 2 Go to step 3 No Go to step 7 Remove obstructions. Did the media originate from the internal duplex? 2 Check the internal duplex media path for obstructions. Is the above component free from obstructions? 2-142 Service Manual