The present invention is directed to an indexing tool turret assembly and method for operating the same. Hereby, the voice coil 16 is physically fixed to the diaphragm and its fixing strength is heightened. 1 to 100 ppm; and a chromate coating layer which is formed on a surface of the Ni plating layer in an amount of coating deposition containing a converted Cr amount of 1 to 40 mgm2. A shank is carried by the spindle and is configured for rotational and reciprocal movement with the spindle. The noise ring is arranged in the housing inlet connecting piece and is provided, on its outer circumference, with a multiplicity of chambers. The toner fusing system for conducting this process includes a fuser roller consisting of a base, and a fusing surface layer that includes both a fluoroelastomer continuous phase, and also a discontinuous phase dispersed through the continuous phase in the form of domains.