A single-page file is assigned a serial number after the file name. The starting number of this serial number can be changed as follows:
Press [Send File Type / Name].
Press [Change] to the right of the entry box.
Using the number keys, enter the starting digit of the serial number.
Press the  key.
You can change the starting digit only if a file type other than [Single Page] is selected.
You can change the number of digits in the serial number. Change the number under [Scanner Features], [No. of Digits for Single Page Files]. You can select 4 or 8.