Disclosed are systems and methods that provide centralized or nodal inmate management and telephone call processing capabilities to controlled environment facilities. In the color laser printer, lengths of optical paths between the f-\u03b8 lens and each of the first through fourth photoconductive units are equal. The second polarity conductor serves as a conductor on the channel interior surface of the adjacent exhaust channel in repetitive fashion. The thermal catalysis body is made of tungsten, molybdenum, tantalum, titanium or vanadium, and is heated by a heater.