Canon ScanFront 400 Instructions Manual page 195

The character string includes
invalid character.
Cannot write logfile. Sending
files will be aborted.
Please select user.
Cause
Invalid characters have been used to set the index file.
Make sure none of the following characters are used in strings
Solution
contained in the index file:
& " ' < >
Write permission has not been granted for the shared folder specified as
Cause
the save destination of the log file.
Solution Check the settings and access permissions of the shared folder.
User data is trying to be exported from the scanner without a user being
Cause
selected at the user settings screen.
Solution Select a user name to export.
195
Chapter 9 Troubleshooting