A developing apparatus includes a developing container for containing a developer therein. The acceleration behavior feedback can be used to coach future driving acceleration behavior that may translate into better long-term driving habits, which in turn may lead to improvements in fuel economy or vehicle range. The blocking circuit, such as a setreset latch in a preferred embodiment, generates a block signal to prevent write access to a nonvolatile memory device, such as flash memory, in response to signals provided to the enable and disable input terminals. The interpolated movement information is used to advect the elements through the region of 3D space. The electrophotographic photoreceptor has excellent electrical properties, such as high charge potential and high charge potential stability during repetitive use. According to the invention, the wiper blade has an ageing indicator element for the wiper blade, said ageing element being covered by a protective element, wherein the protective element is constructed such that, andor is arranged on the wiper blade such that a mounting of the wiper blade on the wiper arm is only possible after a removal of the protective element from the ageing indicator element.