Dell 5230dn Mono Laser Printer Service Manual - Page 170

Step Check 10 Perform a print test and check the duplex drive motor assembly for proper operation. Does the above component operate properly? Yes Go to step 14. 11 Check the external duplex media path for obstructions. Is the above component free from obstructions? 12 Check the external duplex unit assembly for proper installation. Is the above component properly installed? Go to step 12 Go to step 13. 13 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". Go to step 14. Does the display on the operator panel, change every time the sensing area of the above sensor is interrupted or blocked. 14 Perform a print test using the duplex. Does the problem remain? Contact next highest level of tech support. Sensor (duplex input) lingering jam service check. Use this procedure for the following jams: • 230.01 • 230.05 • 232.00 No Replace the duplex drive motor assembly. Go to "Duplex drive motor assembly removal (5350dn, 5530dn, and T656)" on page 4-18. Remove obstructions. Remove then properly re-install the external duplex unit assembly. Replace the external duplex assembly. Problem solved. Step Check 1 Check media origination. Did the media originate from the internal duplex? 2 Check the internal duplex media path for obstructions. Is the above component free from obstructions? 3 Check the duplex guide assembly, front for damage. Is the above component free from damage? Yes Go to step 2 Go to step 3 Go to step 4. No Go to step 7 Remove obstructions. Replace the duplex guide assembly, front. Go to "Duplex guide assembly, front removal (5350dn, 5530dn, and T656)" on page 4-20. 2-136 Service Manual