Canon CanoScan FB620U Hardware Manual page 36

Color image scanner
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Scan quality is poor
Cause 1:
Document cover is open
Solution:
Close the document cover
Cause 2:
Original document floating on document glass
Solution:
Gently press down on the document cover to prevent the document from
floating
Cause 3:
Improperly closed or floating document cover
Solution:
Hold document cover down with hand during scan
Cause 4:
Dirty document glass or document cover
Solution:
Clean document glass or document cover
Cause 5:
Incorrect scan settings
Solution:
Rescan with adjusted settings (See the ScanGear CS-U User's Guide electronic
manual)
Cause 6:
A power cord is too close to the scanner
Solution:
Move all power cords away from the top of the scanner and surrounding
area
Glossy color photo will not scan clearly
Cause:
Optical interference created by the photo adhering to document glass
produces striped patterns
Solution 1:
Gently press down on the document cover
Solution 2:
Move the photo on the document glass to break the adhesion
Solution 3:
Clean the document glass
(See p.
(See p.
38)
38)
36

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