Lexmark T652 Service Manual - Page 178

4062 Sensor (duplex input) static jam service check. Use this procedure for the following jams: • 230.13 • 238.01 • 238.03 • 238.05 • 238.07 Step 1 Check media origination. Check Yes Go to step 2 Go to step 3. No Go to step 5 Remove any prestaged or jammed media. Go to step 4. Did the media originate from the internal duplex? 2 3 Check the media path for partially fed or jammed media. Is the media path free from partially fed or jammed media? 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 7. 4 Check the above sensor for proper connection. Is the above sensor connected properly? Replace the sensor (duplex input). Go to "Sensor (duplex input) removal (T652, T654)" on page 4-68. Replace the connection. 5 6 Check the media path for partially fed or jammed media. Is the media path free from partially fed or jammed media? 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 6. Remove any prestaged or jammed media. Replace the external duplex assembly. Go to step 7. 7 Perform a print test using the duplex. Does the problem remain? Contact next highest level of tech support. Problem solved. 2-144 Service Manual