Canon LBP7660Cdn Manual page 839

You do not have permissions to use Service Management Service. Log in with administrator rights.
Only users with administrator rights can log in to SMS with the user name and password that they use for
Problem logging in to the printer. The user trying to log in cannot do so because they do not have administrator
rights.
Action Log in again with the user name and password of a user with administrator rights.
Cannot login because another user is logged in or logout operations have not been successfully
performed. Please wait a moment and then try this operation again.
Cannot log in for a period of time because either another user is logged in or when the user was logged
Problem
in before, the logout procedure was not performed properly.
If another user is logged in, wait until the user logs out. If another user is not logged in, wait for the lock
Action
to be cancelled.
Error: <Error Details>
Problem An error has occurred for some reason. See <Error Details> for details.
If the solutions given in <Error Details> are unclear, contact your local authorized Canon dealer or sales
Action
representatives.