Canon CanoScan FB620U User Manual download pdf (Page 36)

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 (See p. 38)

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. 38)

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Canon CanoScan FB620U User Manual Page 36