Dell 5230dn Mono Laser Printer Service Manual - Page 156

Step Check 3 Check the above sensor for proper connection. Is the above sensor connected properly? Yes No Replace the duplex input sensor assembly (internal duplex only). Go to "Duplex input sensor assembly removal (5350dn, 5530dn, and T656)" on page 4-19. or replace the external duplex unit assembly (external duplex only). Replace the connection. Sensor (duplex input) service check (external duplex only) Step Check Yes No 1 Check the sensor (duplex input) for damage. Is the above component free from damage? Go to step 2. Replace the external duplex unit assembly. 2 1. Enter the diagnostic mode 2. Select Duplex sensor tests The sensor is Go to step 2. working properly 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. 3 Check the above sensor for proper connection. Is the above sensor connected properly? Replace the external duplex unit assembly. Replace the connection. Sensor (duplex exit) service check (external duplex only) Step Check Yes No 1 Check the sensor (duplex exit) for damage. Is the above component free from damage? Go to step 2. Replace the external duplex unit assembly. 2 1. Enter the diagnostic mode 2. Select Duplex sensor tests The sensor is Go to step 2. working properly 3. Select Sensor test 4. Observe the line item "exit" Does the display on the operator panel, change every time the sensing area of the above sensor is interrupted or blocked. 3 Check the above sensor for proper connection. Is the above sensor connected properly? Replace the external duplex unit assembly. Replace the connection. 2-122 Service Manual