Lexmark CX310 Service Manual page 215

F paper feed sensor
Scanner calibration reset
This is test is run to reset the scanner calibration. This test should only be run after a flatbed or ADF unit has been
replaced.
To perform this operation, do the following:
1
Navigate to Scanner Tests.
2
Select Scanner Calibration Reset. This procedure should only be run after the scanner or
ADF has been replaced displays.
3
Ensure that the scanner glass and white flatbed cushion on the ADF are clean.
4
Select Continue. If the test is successful, then Operation completed successfully displays for three
seconds, and then returns to the main Scanner Calibration Reset menu. If an error occurs during the test, then
Test Failed, Please Retry displays, and a Continue button appears that takes you back to the main
Scanner Calibration Rest Menu screen.
5
Select Exit to leave the test.
After successfully executing this test, verify the results.
1
Load the ADF with a document containing both light and dark content.
2
Perform a duplex copy. If the back side of the resulting copy contains vertical streaks, then the SE should clean the
scanner glass and backing sheet, execute the back side scan uniformity procedure, and then perform another copy.
If streaks still appear on the resulting copy, then the SE can repeat the cleaning and verification procedure a second
time or can replace the ADF entirely.
ADF magnification
This test allows the service technician to adjust the ADF magnification level. To adjust the ADF magnification level,
perform the following steps:
1
Navigate to Diagnostic menu > Scanner Tests > ADF magnification.
2
Use the plus or minus buttons to scroll through the magnification values. The values are 1.000, 1.005, 1.007, .980, .
985, .990 and .995.
3
Press the check button to accept the value. Press X on the screen to exit the test.
Service menus
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