An electrical drive system for the synchronized adjustment of rotatable axles or linearly movable functional parts in particular for printing machines, in terms of their position, speed or acceleration. According to the constitution, a cell area is reduced, which advantageously leads to the reduction of a chip area. The chambers are arranged into pairs which are disposed diametrically opposite one another and which communicate with each other via the hub. The extruded substrate has a biobased content of at least about 85%. The replacement flexible covering portion is attached to the toner cartridge body. A solidification sequence is achieved which is conducive to eliminating solidification shrinkage and piping.