Canon ScanFront 400 Instructions Manual page 45

• Use USB memory that is not write-protected. If the USB
memory is write-protected, data cannot be written to the USB
memory.
• This scanner does not support USB memory equipped with
password security, data encryption, or functions other than
data storage.
• Use a USB memory device that is formatted in the FAT16,
FAT32, or exFAT file system.
• Make sure that the USB memory has sufficient space to store
images.
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Chapter 3 Handling