Scanner Tests - Lexmark MB790MFP Service Manual

SCANNER TESTS

Back Side Scan Uniformity
This procedure should be run after the ADF has been replaced. Before proceeding, make sure that the
scanner glass and backing material are clean.
ASIC Test
A pattern appears and ASIC Test Passed displays. If xxxxxx displays, the test was unsuccessful.
Press Stop
Feed Test
To run the Scanner Feed test:
1. Touch to select Feed Test from the SCANNER TESTS menu.
2. The panel displays the setting's current value
Letter, Legal, or A4.
3. Touch START to begin.
Running Flatbed... displays.
Press 4 to exit the test.
4. Touch Back to return to the Diagnostics Menu.
Sensor Tests
The following tests are available:
Sensor (ADF document set)
Sensor (ADF closed interlock)
Sensor (FB scanner HP)
Sensor (ADF sheet through)
Sensor (ADF top door interlock)
Sensor (ADF media exit sensor)
Sensor (ADF lower door interlock)
Sensor (ADF 1st scan)
Sensor (ADF 2nd scan)
Sensor (FB length 1)
Sensor (FB length 2)
Sensor (FB length 3)
Sensor (ADF long media)
Sensor (ADF Width 1)
Sensor (ADF Width 2)
Sensor (ADF Width 3)
Sensor (ADF Width 4)
to return to the SCANNER TESTS menu.
[setting's current value] . Use the arrows to select from
7462
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