4069-XXX

3. Diagnostic Aids

This chapter explains the tests and procedures to identify printer failures and verify repairs have corrected the problem.

To run the printer diagnostic tests described in this chapter, you must put the printer in Diagnostic Mode.

Diagnostic Mode

To enter the Diagnostic Mode:

1.Turn the printer off.

2.Press and hold the Go and Return buttons.

3.Turn the printer on.

4.Release the buttons when "Performing Self Test" displays on the operator panel.

The tests display on the operator panel in the order shown:

Print Registration

Print Tests

Hardware Tests

Duplex Tests (If installed)

Input Tray Tests

Output Bin Tests

Five Bin Mailbox Test

Base Sensor Test

Printer Setup

Error Log

EP Factory Defaults

Exiting the Diagnostics Mode

Select Exit Diagnostics to exit the Diagnostics Mode and return to normal mode.

Diagnostic Aids 3-1

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Lexmark 4069-XXX manual Diagnostic Aids, Diagnostic Mode, Exiting the Diagnostics Mode