One aspect of the invention is the invention is directed to a toner cartridge including a sump for carrying a supply of toner. In one aspect, a method is performed by one or more data processing apparatus. The method also includes storing the first new ID value with the received first MAC address in memory of the main card. A macro-particle filter which preferentially traps larger particles may be introduced between a porous cathode and the deposition surface. The collector includes a collector electrode 2, heat conductive columnar ceramic elements 3, an outer collector enclosure 4 for maintaining vacuum and loss ceramic members 5 arranged between the outer surface of the collector electrode 2 and the inner surface of the outer collector enclosure 4. The equivalent network contains a series circuit of two transformers, the first transformer on the secondary side having an inductor, and the second transformer on the secondary side having the parallel circuit of a resistor, a capacitor, and a third transformer.