Lexmark X548 Series, Service Manual

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3-14
Service Manual
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Scanner Calibration
Copy Quick Test
This test performs a copy from the scanner flatbed or duplex ADF using the printer’s current settings.
To perform this test, navigate to
Diag Menu > Scanner Calibration > Copy Quick Test
.
Adjust Calibration Values
This setting adjusts the black value (mono and color bands) used in the gamma curve for a specific scan source.
This should only be used to manually tune a replacement scanner’s black gamma value.
To adjust these settings:
1.
Navigate to
Diag Menu > Scanner Calibration > Adjust Calibration Values
.
2.
Touch or to adjust the settings of the following:
•
Flatbed Black
•
ADF Front Black
•
ADF Back Black
3.
Touch
Submit
to save the settings, or touch
Back
to return to
Scanner Calibration
without saving any
changes.
Reset Flatbed, ADF Front, ADF Back Calibration Values
These settings revert the selected scan source’s IQT-related black values to Nominal Black setting and its white
values to Nominal White setting.
Note:
This operation should be performed only when the printer’s scanner has been replaced.
To reset these settings:
1.
Navigate to
Diag Menu > Scanner Calibration
.
2.
Touch
Reset Flatbed Calibration Values
,
Reset ADF Front Calibration Values,
or
Reset ADF Back
Calibration Values
.
3.
Scanner calibration values should only be reset when the scanner is replaced. All customized
scanner calibration data will be lost. Do you wish to continue?
appears. Touch
Yes
to reset the
settings, or touch
No
to return to
Scanner Calibration
.
MISC TESTS
Motor Detect
This test initiates an automatic motor detection process that should be performed whenever the RIP board is
replaced.
To run the test:
1. Navigate to
MISC TESTS
.
2. Touch
Motor Detect
.
3.
Motor Detection In Progress
appears. The process takes about 10 seconds, and stops automatically.
4.
Motor Auto Detect Test Passed
appears, and the display returns to
MISC TESTS
.