Canon LBP7660Cdn Manual page 846

Problem The installation could not be completed because it conflicted with a system shutdown.
Action Restart the printer and perform the install again.
Cannot install the application or license because another application is being installed, or the
firmware being updated. Please wait a moment and then try again.
Either it is installed in another application outside of SMS, or the application cannot be installed because
Problem
the firmware has been updated.
Action Wait until the processing stops before installing the application.
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.