Canon FB330P/FB630P Product Manual page 68

Whitened edges on image scanned from thick book
Cause: Scanner employs an ultra-sensitive scanning unit. Scanning unit
will sense even the smallest amount of light entering around
the edges of the book if the document cover cannot be
completely closed
Solution: Cover the book and document glass with a dark cloth to
prevent ambient light from affecting the scan
Slow scanning speed
Cause 1: Improper parallel port setting
Solution: Adjust parallel port setting (See Getting Started)
Cause 2: Computer can only interface with the scanner with the parallel
port setting set to the slowest mode (Nibble mode)
Solution: Faster speed not obtainable with current computer
Cause 3: Epson Printer Window in use for Epson printer
Solution: Close Epson Printer Window (See p. 73)
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