Contex SD One MF 44 User Manual page 69

Troubleshooting
Image stitching problems:
Image sections misaligned (at points
between the sensors -overlapping pixels)
One or more thin vertical lines (in the
direction of paper feeding) show up in the
scanned image, but not in the original
document.
1. Remove the original from the scanner and calibrate the scanner.
2. Select the Mechanical Calibration to correct stitching errors.
3. If the problem persists after calibration the scanner sensors may need readjusting. Contact your technical service provider.
This is often caused by an unclean glass plate. Even a single spec of dirt in the wrong spot on the glass plate can cause a streak
along your entire scan. To remedy:
Clean your glass plate and rollers as described in this users' guide under Cleaning.
1.
2. Most of the dirt on the glass plate comes from the documents that are passed against it. Wipe the document clean with a dry
lint-free cloth before feeding the document into the scanner.
3. If the problem persists after cleaning, calibrate the scanner. The scanner may have memorized dirt specs and you will need to
recalibrate after removing the dirt.
If the problem persists after cleaning and calibration –Check the glass plate for scratches. A damaged glass plate should be
4.
replaced. Obtain a new glass plate from your service provider. Follow the steps in the user's guide to replace the glass plate
with a new one.
5. A damaged calibration sheet can also cause streaks. Obtain a new sheet and recalibrate the scanner.
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