US Patent 7136612 Connection assembly for a xerographic charging device

A scorotron used in xerography is connected to a voltage source within a printing apparatus through a pin. The pin is anchored in an insulative end block which defines channels therein, each channel enclosing a portion of a corona member which extends the length of the scorotron. Each corona member defines a specially-shaped opening, the openings of a plurality of corona members being aligned to accept the pin therethrough. A cover block is placed over the end block to complete the enclosure of the portions of the corona member. The cover block also defines a collar which surrounds a portion of the pin, and lugs on which a screen of the scorotron is mounted.