4078-00X

2. Diagnostic Information

Use the error indicator table, symptom tables, service checks, and diagnostic aids in chapter 3, to determine the failing part.

Start

Service error indications show as a series of flashes of the Power On light. There is a pause between each series of flashes. If your machine has an error indication, locate the series of flashes in the “Error Indicator Table” on page 2-2and take the indicated action.

Unplug the machine to clear the error indicator.

If an error indicator appears, go to the error indicator table and take the indicated action for that error.

The printer also logs the last occurring error. If you think it may have an intermittent error, or the error indicator lights have been cleared, you can retrieve the error:

1.Run the “Test Page” on page 3-8 . The error is the last number to print on line five. Note the number.

2.Run “Initialize Error Log” on page 3-3 to clear the error (the error may not be the result of a current error).

3.Run the “Parallel Port Test” on page 3-4 . If no error appears, go to “Power-On Self Test (POST) Sequence” on page 2-2 .

If your machine does not have an error indicated, go to “Power-On Self Test (POST) Sequence” on page 2-2.

Diagnostic Information 2-1

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Lexmark 1020 manual Diagnostic Information, Start