Lexmark X792 7562-4xx, Service Manualv

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Diagnostic aids
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2.
Adjust the screw in the left hinge to make the gap between the ADF and flatbed 2.0 mm. Tighten the screw
to raise the ADF; loosen it to lower the ADF.
3.
Reinstall the ADF rear cover.
Calibrating the scanner
After replacing any of the following components, you must reset the scanner calibration values and check the
black levels of the scanner:
–
Flatbed scanner assembly
–
ADF unit assembly
–
Flatbed scanner CCD assembly
–
ADF duplex CCD assembly
Resetting the calibration values
Note: If the printer menus do not match the following instructions, then contact your next level of support.
1.
Enter the Diagnostic mode: press and hold 3 and 6 , turn on the printer, and release the buttons when the
splash screen appears.
2.
From the Diagnostics menu, navigate to:
SCANNER CALIBRATION > (select an assembly) > Reset Calibration Values
Calibrating the scanner black levels
Note: If the printer menus do not match the following instructions, then contact your next level of support.
1.
From the Diagnostic menu, navigate to:
PRINT TESTS > Print Quality Pages
Multiple test pages print. Use the first printed page to test the scanner black levels.
•
Adjust the ADF Front:
a. Load the printed test page faceup into the ADF.
b. From the Diagnostics menu, navigate to:
SCANNER CALIBRATION > Copy Quick Test .
c. Compare the copy to the original test page, and then navigate to:
Adjust Calibration Values > ADF Front Black
d. Adjust the values, and then touch Submit to save your changes. Increasing the value makes the
black level darker.