Scanner Calibration - Lexmark MX81 Series Service Manual

Right Margin

Scanner calibration

This diagnostic test is used to calibrate both the Black and white values for the ADF and the flatbed. The following values
can be adjusted using this menu item:
• Flatbed Black – Values are -10 to 10. The default value is 0.
•
ADF Front Black – Values are -10 to 10. The default value is 0.
•
ADF Back Black – Values are -10 to 10. The default value is 0.
• Flatbed White – Values are -10 to 10. The default value is 0.
•
ADF Front White – Values are -10 to 10. The default value is 0.
•
ADF Back White – Values are -10 to 10. The default value is 0.
These should only be used to manually adjust a replacement scanner. To adjust a calibration value, perform the following
steps:
1
Navigate to Diagnostics>Scanner Calibration, and touch Scanner Calibration.
2
Select scanner calibration values.
3
Select the value to be adjusted by touching it.
4
Increment up from 0 to darken a value. Decrement the value to lighten it.
5
To view the result for an ADF front adjustment, place a test page image side up and touch Copy Quick Test. Compare
the results to the original. Adjust as needed.
6
To view the result for an ADF back adjustment, place a test page image side down and touch Copy Quick Test.
Compare the results to the original. Adjust as needed.
7
To view the result for a flatbed adjustment, remove any paper from the ADF, place a test page on the flatbed and
touch Copy Quick Test. Compare the results to the original. Adjust as needed.
Reset flatbed, ADF front, and ADF back calibration values
These settings revert the selected scan source IQT black and white values back to the Nominal Black and Nominal White
settings.
This test should not be performed unless it is on a replacement scanner.
To reset a scanner calibration value, do the following:
1
Navigate to Diagnostics>Scanner Calibration, and touch Scanner Calibration.
2
Select the value to reset (Flatbed, ADF Front, ADF Rear) by touching the selection.
3
A screen warning displays.
4
Touch Yes to accept. A message indicating the value is being reset displays.
-15 to +15 Increasing the value moves the image toward the right of the page.
Service menus
233
7463