Provided a charging member including an electro-conductive substrate and a surface layer. The respective blades have cross-sections with semi-parabolic edges, with each blade having respective elements connected together by mechanical reinforcing elements. applying a vibration force to the container for an acting time, and maintaining the operating temperature during this stage within a first working temperature range; c. The end caps are removed from the end of the ladder steps and the ladder steps are removed from the straps for compact storage with the straps. Therefore, the power consumption is nearly identical with the waveform having driving frames of a fixed frame time. The gear shift selector includes a toggle switch for asserting at least one gear shift request, a counter receiving the at least one gear shift request, and a time delay for preventing communication of the at least one gear shift request from the counter until a predefined time period has passed.