Lexmark 6500e
Service menus. Adjustments 1
Calibrating the scanner
After replacing any of the following components, you must reset the relevant scanner calibration values and check the black levels of the scanner:
• Flatbed scanner module assembly
• Front ADF scanner module assembly
• Back ADF scanner module assembly
• Controller board
Resetting the calibration values
Note: If the scanner menus do not match the following instructions, then contact your next level of support.
- Enter the Diagnostic mode: press and hold 3 and 6, turn on the printer, and release the buttons when the splash screen appears.
- From the Diagnostics menu, navigate to: Scanner Calibration > Reset (relevant assembly) Calibration Values.
Adjusting the scanner black and white levels
Notes:
• If the scanner menus do not match the following instructions, then contact your next level of support.
• For best results, use media with a minimum weight of 24lb and minimum brightness of 92 for the following procedures.
- From the Diagnostic menu, navigate to: Scanner Calibration > Print Testcase. A single, simplex test page will print with grey scale samples from 1 to 100, with 1 representing pure white and 100 representing pure black.
- Adjust the ADF Front:
White Level:
▪ Load the printed test page facedown into the ADF.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the white level calibration by comparing the copy to the original test page. Ensure that the lightest visible shaded squares of the original have similar lightness to the same lightest visible shaded squares in the copy. If the original and copy pages match, the white level calibration is correct and needs no adjustment. Otherwise, navigate to: Adjust Calibration Values > ADF Front White.
Note: A small amount of background is normal and acceptable in the copy. Disregard the background when comparing the lightness level between the original and the copy.
▪ Adjust the values, and then touch Submit to save your changes. Increasing the value makes the white level darker.
▪ To check the changes, reload the original test page, and then repeat the Copy Quick Test. Repeat the steps as needed until you are satisfied with the ADF front white level.
Black Level:
▪ Load the printed test page facedown into the ADF.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the black level calibration by assessing the toner saturation of the darkest square of the copy. The objective of the black level calibration is to find the minimum numeric setting that provides the maximum toner saturation of the darkest square. Too high of a setting will cause other dark squares to become fully black. Too low of a setting will result in the darkest square not being as dark as possible.
▪ Navigate to: Adjust Calibration Values > ADF Front Black. If the darkest square of the copy page does not appear fully saturated, then increase the value. If several of the darkest squares look equally saturated, then decrease the value. Select Submit to save your changes, reload the original test page, and repeat the Copy Quick Test. Inspect the copy page again and repeat this step until the single darkest square is fully saturated, and none of the other dark squares are as dark as the darkest square. - Adjust the ADF Back:
White Level:
▪ Load the printed test page faceup into the ADF.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the white level calibration by comparing the copy to the original test page. Ensure that the lightest visible shaded squares of the original have similar lightness to the same lightest visible shaded squares in the copy. If the original and copy pages match, then the white level calibration is correct and needs no adjustment. Otherwise, navigate to: Adjust Calibration Values > ADF Back White.
Note: A small amount of background is normal and acceptable in the copy. Disregard the background when comparing the lightness level between the original and the copy.
▪ Adjust the values, and then touch Submit to save your changes. Increasing the value makes the white level darker.
▪ To check the changes, reload the original test page, and then repeat the Copy Quick Test. Repeat the steps as needed until you are satisfied with the ADF back white level.
Black Level:
▪ Load the printed test page faceup into the ADF.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the black level calibration by assessing the toner saturation of the darkest square of the copy. The objective of the black level calibration is to find the minimum numeric setting that provides the maximum toner saturation of the darkest square. Too high of a setting will cause other dark squares to become fully black. Too low of a setting will result in the darkest square not being as dark as possible.
▪ Navigate to: Adjust Calibration Values > ADF Back Black. If the darkest square of the copy page does not appear fully saturated, then increase the value. If several of the darkest squares look equally saturated, then decrease the value. Select Submit to save your changes, reload the original test page, and repeat the Copy Quick Test. Inspect the copy page again and repeat this step until the single darkest square is fully saturated, and none of the other dark squares are as dark as the darkest square. - Adjust the Flatbed:
White Level:
▪ Remove all pages from the ADF, then load the printed test page facedown onto the flatbed.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the white level calibration by comparing the copy to the original test page. Ensure that the lightest visible shaded squares of the original have similar lightness to the same lightest visible shaded squares in the copy. If the original and copy pages match, the white level calibration is correct and needs no adjustment. Otherwise, navigate to: Adjust Calibration Values > Flatbed White.
Note: A small amount of background is normal and acceptable in the copy. Disregard the background when comparing the lightness level between the original and the copy.
▪ Adjust the values, and then touch Submit to save your changes. Increasing the value makes the white level darker.
▪ To check the changes, reload the original test page, and then repeat the Copy Quick Test. Repeat the steps as needed until you are satisfied with the flatbed white level.
Black Level:
▪ Remove all pages from the ADF, then load the printed test page facedown onto the flatbed.
▪ From the Diagnostics menu, navigate to: Scanner Calibration > Copy Quick Test.
▪ Inspect the black level calibration by assessing the toner saturation of the darkest square of the copy. The objective of the black level calibration is to find the minimum numeric setting that provides the maximum toner saturation of the darkest square. Too high of a setting will cause other dark squares to become fully black. Too low of a setting will result in the darkest square not being as dark as possible.
Note: A small amount of background is normal and acceptable in the copy. Disregard the background when comparing the lightness level between the original and the copy.
▪ Navigate to: Adjust Calibration Values > Flatbed Black. If the darkest square of the copy page does not appear fully saturated, then increase the value. If several of the darkest squares look equally saturated, then decrease the value. Select Submit to save your changes, reload the original test page, and repeat the Copy Quick Test. Inspect the copy page again and repeat this step until the single darkest square is fully saturated, and none of the other dark squares are as dark as the darkest square.