Even if you change a user code, the counter value will not be cleared.
Press the [Home] key on the top left of the control panel, and press the [Address Book Management] icon on the [Home] screen.
Check that [Program / Change] is selected.
Select the user whose user code you want to change.
Press the name key, or enter the registered number using the number keys. You can search by the registered name, user code, folder name, or e-mail address.
Press [Auth. Info].
Press [Change] under "User Code".
Enter the new user code using the number keys, and then press the [] key.
To change the available functions, press [Next] to display "Available Functions".
Press the key to select the functions to enable them.
Press [OK].
Press the [User Tools/Counter] key.
To change the name, key display and title, see Registering User Information.