A system for handling checks is provided that includes a sorter operable to retrieve MICR data from a plurality of checks. A UE establishes an RRC connection with a base station. A test cable is installed to simulate the new telephone service. The cam profile interacts with the wiper arm in a normal direction that is perpendicular to the plane of reciprocation of the wiper assembly so as to selectively regulate contact of the blade assembly with various surfaces disposed in the range of reciprocation of the blade assembly.