Lexmark Optra N 4040, Reference Handbook

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Laser Printer Reference Handbook
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LCD Test
To test the operator panel display:
1. Enter Diagnostics mode.
2. Select [HARDWARE TESTS].
3. Select [LCD Test].
4. Select [Single] or [Continuous].
5. The display goes through a continuous sequence of turning pels
on and off.
6. Press Return to stop continuous LCD test.
7. Press Return to return to the Diagnostics mode main menu.
Maintenance Kit Count
This non-displayed counter must be reset after the maintenance kit is
replaced to prevent the [80 Scheduled Maintenance] message from
displaying when the machine is turned on.
1. Enter Diagnostics mode.
2. Select [PAGE COUNTS].
3. Select [Maintenance Count].
4. Select [Reset] to set the count back to “0”.
5. Press Return to return to the Diagnostics mode main menu.
Memory Tests
1. Enter Diagnostics mode.
2. Select HARDWARE TESTS].
3. Select [Memory Test].
4. Select either [DRAM] or [ROM].
5. Select [Single] or [Continuous].
6. The display will indicate [PASSED], or [FAILED].
7. Select [CANCEL] to stop continuous memory test.
8. Press Return to return to Diagnostics mode main menu.