Use this function to have numbers printed on the background of copies.
If this function is used in conjunction with Sort, the same numbers are printed on each set of copies, helping you keep track of confidential documents.
Press [Edit / Stamp].
Press [Stamp] twice.
Press [Background Numbering].
Enter the number to start counting from with the number keys, and then press [].
Press [OK] three times.
The numbers appear to overlap the copied image in some cases.
You can change the settings for Background Numbering under [Background Numbering] in User Tools. For details, see Background Numbering.