Motor Tests; Print Tests - Lexmark W850n Service Manual

MOTOR TESTS

The tests in this group allow you to test specific motors, and on some motors run them forward or reverse.
To run the MOTOR TESTS:
1.
Select MOTOR TESTS from DIAGNOSTICS.
2.
Select the test to run. The following tests are available:
•
Transport mtr
•
Fuser cooling fan
•
PC unit cooling fan
•
Toner add mtr
•
Drum unit mtr
•
Registrat clutch
•
Tray 1 feed mtr
•
Tray 2 feed mtr
•
Tray 3 feed mtr
•
Tray 4 feed mtr
•
Tray 5 feed mtr
Once selected the name of the selected test appears on the operator panel.
3.
If available, Forward and Reverse appear for selected tests.
To stop the test, press Back (

PRINT TESTS

Input source tests
The purpose of the diagnostic Print Tests is to verify that the printer can print on media from each of the installed
input options. The content of the Print Test Page varies depending on the media installed in the selected input
source.
Check each Test Page from each source to assist in print quality and paper feed problems.
To run the Print Test Page:
1.
Select PRINT TESTS from DIAGNOSTICS.
2.
Select the media source.
Tray 1
Tray 2
Tray 3 (if installed)
Tray 4 (if installed)
Tray 5 (if installed)
Multipurpose Feeder
3.
Select Single or Continuous.
•
If Single is selected, a single page is printed.
•
If Continuous is selected, printing continues until Stop (
If a source is selected that contains envelopes, an envelope test pattern is printed. If Continuous is
selected, the test pattern is printed only on the first envelope.
Note: The Print Test Page always prints on one side of the paper, regardless of the duplex setting or the
presence of a duplex option.
Press Back ( ) to return to PRINT TESTS.
•
MPF pick solenoid
•
Transport clutch
•
Duplex drv mtr
•
Diverter solenoid
•
Exit2 cooling fan
•
Exit1 shift mtr
•
Exit2 shift mtr
•
Exit2 drive mtr
) or Stop ( ).
) is pressed to cancel the test.
Diagnostic aids
4024-110
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