48 Maintenance C9148-90909
Performing manual calibration
Manual calibration provides precise control of image placement. Vertical and horizontal image
registry for both the ADF and the glass can be set individually. For example, changing the
leading-edge adjustment for the ADF does not effect the leading-edge adjustment of the glass.
Note Manual calibration increment values are in pixels (600 pixels-per-inch). All values are positive
numbers. The center adjustment value 2670 represents an imaginary center line through the ADF.
It may not be exactly centered due to mechanical tolerances between MFP units
Hint Before attempting to manually calibrate the MFP, first try the automatically calibrating procedure
(see “Performing automatic Calibration” on page 47).
Figure 17. Manual calibration registration lines
Lead adjustment for the ADF
Hint It might be helpful to reset the product settings to factory defaults before attempting manual
calibration. Be sure to print a configuration page before doing a setting reset so that any user-
defined settings can be restored (see “Configuration page” on page 130).
1 Press the
MENU button.
2 Select DIAGNOSTICS.
3 Select CALIBRATE SCANNER.
4 Select LEAD ADJUSTMENT.
5 The message Lead Adjustment ### Range 0-255 appears on the control-panel display. Use
the numeric keypad to type a value for the leading-edge adjustment.
Hint Entering a lower value than current setting moves the image away from the leading edge (toward
the bottom of the page). Entering a higher value than the current setting moves the image toward
the leading edge (toward the top of the page).
6 Press the
SELECT ( ) button to save the setting.
7 Use the ADF to scan a source document (use the calibration target page if you have already
automatically calibrated the MFP). Verify that the leading edge is correctly positioned on the
output copy.
Control panel
ADF
ADF lead adjustment
0
255
ADF center adjustment
2470
2870
Control panel
ADF
Glass leading-edge adjustment
0,0
255
Glass left edge adjustment
255
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