A method and apparatus for cleaning an analytical instrument while operating the analytical instrument are described. The sleeve receives both the tab and the electrical contact in order to interconnect these tab and contact. The server transmits the HTTP request to a user agent client via a wide area network connection and receives, from the user agent client, an HTTP response to the HTTP request. A half-tonercompositer composites respective strips of the decoded image planes and sends output to a printhead interface. In a fourth embodiment, a viewer participating in a multicast session of the content requests content beyond the current broadcast point. The reactive species cause the binder material to break down into smaller molecules and thereby be removed from the injected molded part.