Lexmark 2380-001, Service Manual

Page: 47 / 204

Diagnostic Information 2-23
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:
• Replace the main logic board.
• Reset the bidirectional print adjustment.
Refer to “Bidirectional Print Adjustment”
on page 4-5.
2 Interface Cable Check the connection and continuity of the
interface cable.
3 Emulation Mode Enter the Setup Menu and make sure the
printer is in the correct emulation mode for the
computer, either IBM or Epson.
4 Serial Interface
Adapter 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.