Lexmark Optra E 4026-0 Series Reference Handbook page 107

Fuser Temperature
1. Enter Diagnostics mode.
2. Select [Fuser Temperature].
3. Select [Normal], [No Boost], Or [Low Temperature].
4. Press RETURN to return to the Diagnostics mode main menu.
Warm-Up Time
1. Enter Diagnostics mode.
2. Select [Warm Up Time].
3. Select a setting of "0" through "5". Use the [+] or [-] key to change
the number. "0" is the shortest fuser warm up time (factory
setting). "5" is the longest fuser warm up time.
4. Press RETURN to return to the diagnostic 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 [Maintenance Count].
3. Select [RESET] to set the count back to "0".
4. Press RETURN to return to the Diagnostics mode main menu.
Memory Test
1. Enter Diagnostics mode.
2. Select [Memory Test].
3. Select either [DRAM] or [ROM].
4. Select [Single] or [Continuous].
5. The display will indicate [PASSED], or [FAILED].
6. Select [CANCEL] to stop continuous memory test.
7. Press RETURN to return to Diagnostics mode.
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