Lexmark 4039-1XX Manuale Utente

Service Manual

The Wrap Tests check the circuits used to communicate with the 
host computer.

To run the Wrap Test:

1. Turn the printer off. 

2. Disconnect the interface cable. 

3. Install the wrap plug in one of the interface cable connectors.

Note:  Install the parallel wrap plug part no. 1319128 for the parallel 
test or install the 25 pin serial wrap plug part no. 1329048 for the 
serial test. 

4. Enter Diagnostics mode. 

5. Select [Wrap Test]. 

6. Select [Parallel] for the parallel port or [Serial] for the 25 pin 

serial port. 

7. Select [Single] or [Continuous]. 

8. Select [CANCEL] to stop continuous.

A [PASSED] message indicates the printer connection to the printer 
cable connector is good.

A [FAILED] message indicates a defective system board.

Note:  Ignore the number displayed after a failure is displayed. 

9. Press Return to return to the Diagnostics mode main menu. 

10. Turn the printer off, then remove the wrap plug from the interface 

connector.