Calibrating the scanner
Calibrate the scanner to compensate for offsets in the scanner imaging system (carriage head) for
ADF and flatbed scans. Because of mechanical tolerances, the scanner's carriage head might not
read the position of the image accurately. During the calibration procedure, scanner offset values are
calculated and stored. The offset values are then used when producing scans so that the correct
portion of the document is captured.
Scanner calibration should be carried out only if you notice offset problems with the scanned images.
The scanner is calibrated before it leaves the factory. It needs to be calibrated again only rarely.
Before calibrating the scanner, print the calibration target.
To print the calibration target
1 Place letter- or A4-size paper in tray 1, and adjust the side guides.
2 Touch DIAGNOSTICS
3 Touch CALIBRATE SCANNER.
4 Print the first pass of the calibration target.
5 Place the first pass of the calibration target in tray 1 so that the arrows are facing into the MFP.
6 Print the second pass. The final calibration target must look like the following figure.
CAUTION If the calibration target does not look like the figure shown here, the
calibration process will fail and the quality of scans will be degraded. The black areas
must extend completely to the short edges of the page. If they do not, use a black marker
to extend the black areas to the edge of the page.
7 Place the calibration target face-up into the ADF, and adjust the side guides.
8 Press M
ENU
, touch DIAGNOSTICS, then touch CALIBRATE SCANNER.
9 After the calibration target has passed through the ADF once, place it face-down in the ADF.
After both passes through the ADF, place the calibration target face-down on the scanner glass
to complete the calibration.
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