Lexmark 2380 Service Manual - Page 47

No Print or Abnormal Print Service Check FRU/Function Action 1 Main Logic Board If the Print Test does not complete correctly, do the following: 2 Interface Cable 3 Emulation Mode 4 Serial Interface Adapter • Replace the main logic board. • Reset the bidirectional print adjustment. Refer to "Bidirectional Print Adjustment" on page 4-5. Check the connection and continuity of the interface cable. Enter the Setup Menu and make sure the printer is in the correct emulation mode for the computer, either IBM or Epson. If the serial interface adapter is installed, make sure the dip switches match the computer settings. • Make sure the serial adapter power cable, if present, is securely connected to the printer power connector CN5. • On newer models, make sure the serial interface adapter's power LED is on when printer power is on. Run the "Serial Interface Adapter Print Test" on page 3-6. If the test is not successful replace the serial interface adapter. If no defect is found, the printer and serial interface adapter are working correctly. The problem may be with the interface cable, the computer, the printer driver, or the specific job being sent. Diagnostic Information 2-23