Even if you change a user code, the counter value will not be cleared.
Press [Change] on the [Address Book Mangmnt] screen.
For details about how to access the [Address Book Mangmnt] screen, see Displaying the Printer Configuration Screens Using the Control Panel.
Select the item you want to display from [All Users] or [User Code].
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, or e-mail address.
Press [Auth. Info].
Press [User Code], and then enter the new user code using the number keys.
Press [OK].
Press [Exit].
Press [OK].
Press the [User Tools] key.
To change the name, key display and title, see Registering User Information.