2-138 Service ManualSensor (duplex input) static jam service check.Use this procedure for the following jams:• 230.13 • 238.01 • 238.03 • 238.05 • 238.07Step Check Yes No1 Check media origination.Did the media originate from the internal duplex?Go to step 2 Go to step 52 Check the media path for partially fed or jammed media.Is the media path free from partially fed or jammed media?Go to step 3. Remove any pre-staged or jammedmedia.3 Check the sensor (duplex input) for proper operation.Does the display on the operator panel, change every timethe sensing area of the above sensor is interrupted orblocked.Go to step 7. Go to step 4.4 Check the above sensor for proper connection.Is the above sensor connected properly?Replace thesensor (duplexinput).Go to “Sensor(duplex input)Replace theconnection.5Is the media path free from partially fed or jammed media? staged or jammedmedia.6 Check the sensor (duplex input) for proper operation.Does the display on the operator panel, change every timethe sensing area of the above sensor is interrupted orblocked.Go to step 7. Replace theexternal duplexassembly.7 Perform a print test using the duplex.Does the problem remain?Contact nexthighest level oftech support.Problem solved.4. Observe the line item “input”.3. Select sensor test.2. Select Duplex tests.1. Enter the diagnostic mode.4. Observe the line item “input”.3. Select sensor test.2. Select Duplex tests.1. Enter the diagnostic mode.removal (5350dn,page 4-69.5530dn, andCheck the media path for partially fed or jammed media. Go to step 6. Remove any pre-T656)” on