Image Quality
- The following scanned image shows possible image errors and the actions required to resolve them.
- Cleaning the scanner will remove most vertical lines.
Cleaning the scanner
Under the lid, clean the scan glass and pinch wheel. You can freely rotate the pinch wheels to be able to clean all sides.
In the lower chassis clean the hold-up roller and all the drive wheels. Pushing on one of the drive rollers will rotate all drive rollers and the hold-up roller, enabling access to clean all sides.
- Also check to ensure there are no scratches on the scan glass. A scratched scan glass should be replaced.
- Calibrating the scanner will remove the streaking and clean up the white background. Calibration adjusts the optical sensitivity of each pixel in the sensor to give the correct levels of black and white.
See Calibrate the scanner below
Calibrate the scanner
Ensure the scanner is cleaned before the Calibration is performed. Calibrating a dirty scanner can introduce more problems.
Remove the Document Return Guides.
From the Home screen, select the scanner "i" in the bottom left hand corner.
Press Calibrate.
Insert the calibration target into the scanner black end first face up. Press OK.
The calibration target will feed back & forth.
Wait a few minutes until the process is complete. When complete the software will automatically return to the Home page.
Press rewind on the scanner to eject the target. Replace the calibration target in its packaging and keep in a safe place where it will not be damaged or bent until required again.
- Auto-stitch the scanner to align broken lines.
Auto-stitch adjusts the electronic alignment of each segments of the scan sensor for both front to back and left to right alignment to avoid "stitch errors" at each intersection.
See Auto-Stitch the scanner
Auto-Stitch the scanner
Ensure the scanner is cleaned and calibrated before the Auto-stitch is performed. Remove the Document Return Guides.
From the Home screen, select the scanner "i" in the bottom left hand corner.
Press Auto Stitch.
Insert the calibration target into the scanner black end first face up. Press OK.
The calibration target will feed back & forth.
Wait a few minutes until the process is complete. When complete the software will automatically return to the Home page.
Press rewind on the scanner to eject the target. Replace the calibration target in its packaging and keep in a safe place where it will not be damaged or bent until required again.
