Canon imageFORMULA ScanFront 400 Set Up And Operation Manual page 103

Passports do not scan properly
Cannot turn on the power
The scanner does not turn ON
when the power switch is
pressed.
An "invalid password" error
message appears even when
the correct password is entered.
Cause
The specified paper size is too small.
Specify a larger paper size (e.g., A4) for the [Paper Size] setting in the
Solution
Scan / Send Settings screen. (Refer to p. 86 of the ScanFront 400
INSTRUCTIONS.)
Cause A feed error related to the thickness of the paper occurred.
Set [Resolution (dpi)] to 300 dpi or less in the Scan / Send Settings
Solution
screen. (Refer to p. 87 of the ScanFront 400 INSTRUCTIONS.)
Cause The side of the passport with fewer pages is being inserted first.
When scanning a passport, place the passport so that the side with more
Solution
pages is fed into the scanner.
Hardware
The AC adapter is not connected properly or the power plug is not
Cause
inserted.
Check the connections of the AC adapter and power plug. If the
Solution problem is not resolved after checking the connections, contact your
local authorized Canon dealer.
Cause A USB memory device in inserted in the scanner.
Solution Remove the USB memory device, and restart the scanner.
The date and time settings on the computer and ScanFront 400 do not
Cause
match.
Match the date and time settings on the computer and ScanFront 400. If
there is a discrepancy of 2 minutes or more when the date and time
Solution
settings on the computer and ScanFront are converted to Greenwich
Mean Time, an "invalid password" error message will appear.
103
Chapter 6 Troubleshooting