Procedure for Background Numbering (classic)
Press [Edit / Stamp].
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Press [Stamp] twice.
Press [Background Numbering].
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Enter the number to start counting from with the number keys, and then press [
].
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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 (Copier / Document Server Features).