Lexmark 4049LMO Service Manual - Page 72

Parallel Confidence, Permanent Count, Print Contrast, of the Dual Rear Feeder.

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4049-XXX Note: "Feeder" refers to the Envelope+ or 100-Sheet Auxiliary feeder. "Feeder 1" and "Feeder 2" refer to the front and rear bins of the Dual Rear Feeder. 1. Enter Diagnostics mode. 2. Select [PAPER FEED TESTS]. 3. Select [Tray 1], [Tray 2], [Tray 3],[Feeder],[Feeder 1], [Feeder 2], or [Manual]. 4. Select [Single] or [Continuous]. 5. Select [CANCEL] to stop continuous. 6. Press Return to return to the Diagnostics mode main menu. Parallel Confidence This test requires specific PC software and is to be implemented with the assistance of Lexmark Technical Support. It can be used to diagnose parallel port interface problems. Permanent Page Count The permanent page count can be displayed only. It cannot be modified or reset by the customer or servicer. 1. Enter Diagnostics mode. 2. Select [PAGE COUNTS]. 3. Select [Permanent Page Count]. 4. Press Return to return to the Diagnostics mode main menu. Print Contrast This setting varies the developer bias to vary the print darkness. If the Print Darkness setting on the customer menu does not allow the darkness to be set correctly, this setting can increase or decrease the entire darkness range. 1. Enter Diagnostics mode. 2. Select [PRINTER SETUP]. 3. Select [Print Contrast]. 4. Select [Low], [Medium], or [High]. 5. Press Return to return to the Diagnostics mode main menu. 3-11

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3-11
4049-XXX
Note:
“Feeder” refers to the Envelope+ or 100-Sheet Auxiliary
feeder. “Feeder 1” and “Feeder 2” refer to the front and rear bins
of the Dual Rear Feeder.
1.
Enter Diagnostics mode.
2.
Select [PAPER FEED TESTS].
3.
Select [Tray 1], [Tray 2], [Tray 3],[Feeder],[Feeder 1], [Feeder 2],
or [Manual].
4.
Select [Single] or [Continuous].
5.
Select [CANCEL] to stop continuous.
6.
Press Return to return to the Diagnostics mode main menu.
Parallel Confidence
This test requires specific PC software and is to be implemented
with the assistance of Lexmark Technical Support. It can be used to
diagnose parallel port interface problems.
Permanent Page Count
The permanent page count can be displayed only. It cannot be mod-
ified or reset by the customer or servicer.
1.
Enter Diagnostics mode.
2.
Select [PAGE COUNTS].
3.
Select [Permanent Page Count].
4.
Press Return to return to the Diagnostics mode main menu.
Print Contrast
This setting varies the developer bias to vary the print darkness. If
the Print Darkness setting on the customer menu does not allow the
darkness to be set correctly, this setting can increase or decrease
the entire darkness range.
1.
Enter Diagnostics mode.
2.
Select [PRINTER SETUP].
3.
Select [Print Contrast].
4.
Select [Low], [Medium], or [High].
5.
Press Return to return to the Diagnostics mode main menu.