Canon CanoScan FB1200s Product Manual page 94

Scanning unit fails to return to ready position (rear of scanner)
Cause: Power cord fell out of contact with the electrical outlet or the AC adapter
was unplugged from the scanner while scanning unit in motion
Solution: Clear all documents and objects from the document glass, close the document
cover, unplug the power cord from the electrical outlet and then plug it back in
Scan quality is poor
Cause 1: Document cover is open
Solution: Close the document cover (and cover thick documents with a dark cloth)
Cause 2: Original document floating on document glass
Solution: Gently press down on the document cover to prevent 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-S or Plug-in Module CS-S
Users 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
(See p. 100)
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