Upon viewing the list of printers within a Terminal Server Session, it is noticed that all printers are listed.
This can be caused if the user that is logged in is a member of the Domain Admins or Local Administrators group of the local Terminal Server. This permission allows for the viewing of all printers.
Removing the user from the Domain Admins or Local Administrators group from the Terminal Server will resolve this issue. If the user requires Administrator rights to the server, there is no resolution.