Registering a User in the Address Book and Specifying the Login Information
When "Basic Authentication" is specified on the machine as the User Authentication, specify the login user name and password for each user who uses the machine.
If you specify the authentication method that uses the LDAP Server (LDAP Authentication), you have to specify the user name and password only when the authentication screen to access the LDAP Server is displayed.
Press [Address Book] on the Home screen.
On the Address Book screen, press [Register] and enter the user name.
Press the [User Management / Others] tab 
[User Management].
Enter the login information.
For Basic Authentication
Enter the Login User Name and Login Password.
For LDAP Authentication
Press [LDAP Authentication Info].
Select [Specify Other Authentication Information] in "LDAP Authentication Info", and then enter the Login User Name and Login Password to access the LDAP Server.
Ask the administrator for the Login user name and Login password.
When you select [Specify Other Authentication Information] in "LDAP Authentication Info", the setting of [Register/Change/Delete LDAP Server] in the [System Settings]
[Settings for Administrator] on the left column is enabled.[System Settings]
[Settings for Administrator][Authentication/Charge][Administrator Authentication/User Authentication/App Auth.]
Press [OK].
Press [OK].
After completing the procedure, press [Home] (
).