Lexmark Optra 4049 Series, Service Manual

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3-9
4049-XXX
Setting “5” increases warm-up time by 90 seconds; lower settings
increase the time proportionately less. Settings other than “0” may
reduce throughput. Use the [+] or [-] key to change the number and
then select [SAVE].
Melting letterheads may be prevented by reducing the fuser
temperature as described above for paper curl.
Fuser Temperature
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Fuser Temperature].
4. Select [Normal], [No Boost], Or [Low Temperature].
5. Press Return to return to the Diagnostics mode main menu.
Fuser Warm-Up Time
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Warm-Up Time].
4. Select a setting of “0” through “5”. Use the + or - key to change
the number. 0 is the shortest fuser warm-up (factory setting). 5
is the longest fuser warm-up.
5. Press Return to return to the Diagnostics mode main menu.
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.