A pocket closure assembly can have a pocket and a first member coupled to the pocket, where the first member has a first surface. The method includes sensing an output voltage feedback signal, comparing the sensed feedback signal to a reference at a determined time during a cycling of the switch, and regulating an output voltage at the load by controlling whether a cycle of one of the drive signals cycles the switch in response to the comparison. Articulation of the joint may cause a first layer of the membrane to move through a first boundary section into a second layer of the membrane, while the second layer moves through a second boundary section into the first layer. The control device influences the actuator as a function of the output signal of the sensor. According to one exemplary embodiment, each image marking engine is controlled to be inactive in a round-robin manner to maintain substantially equal running time on each image marking engine or a substantially equal number of printed sheets on each marking engine.